Search a number
-
+
31714173792 = 2532719381509
BaseRepresentation
bin11101100010010011…
…111110001101100000
310000212012210221202100
4131202103332031200
51004422312030132
622322544450400
72201623013040
oct354223761540
9100765727670
1031714173792
11124a4908194
126191019a00
132cb5564c12
14176bd7d720
15c5937c37c
hex7624fe360

31714173792 has 144 divisors (see below), whose sum is σ = 103606382880. Its totient is φ = 9014132736.

The previous prime is 31714173781. The next prime is 31714173811. The reversal of 31714173792 is 29737141713.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348334 + ... + 429842.

It is an arithmetic number, because the mean of its divisors is an integer number (719488770).

Almost surely, 231714173792 is an apocalyptic number.

31714173792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31714173792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51803191440).

31714173792 is an abundant number, since it is smaller than the sum of its proper divisors (71892209088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31714173792 is a wasteful number, since it uses less digits than its factorization.

31714173792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81725 (or 81714 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The spelling of 31714173792 in words is "thirty-one billion, seven hundred fourteen million, one hundred seventy-three thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 193 224 252 288 336 386 504 579 672 772 1008 1158 1351 1544 1737 2016 2316 2702 3088 3474 4053 4632 5404 6176 6948 8106 9264 10808 12159 13896 16212 18528 21616 24318 27792 32424 43232 48636 55584 64848 81509 97272 129696 163018 194544 244527 326036 389088 489054 570563 652072 733581 978108 1141126 1304144 1467162 1711689 1956216 2282252 2608288 2934324 3423378 3912432 4564504 5135067 5868648 6846756 7824864 9129008 10270134 11737296 13693512 15731237 18258016 20540268 23474592 27387024 31462474 41080536 47193711 54774048 62924948 82161072 94387422 110118659 125849896 141581133 164322144 188774844 220237318 251699792 283162266 330355977 377549688 440474636 503399584 566324532 660711954 755099376 880949272 991067931 1132649064 1321423908 1510198752 1761898544 1982135862 2265298128 2642847816 3523797088 3964271724 4530596256 5285695632 7928543448 10571391264 15857086896 31714173792