Search a number
-
+
22131104974620 = 22351618732278649
BaseRepresentation
bin1010000100000110011001…
…01001101000011100011100
32220100201020202110010110120
411002003030221220130130
510400044000333141440
6115022520025434540
74442630261306445
oct502031451503434
986321222403416
1022131104974620
11706282688a814
1225951a633ba50
13c46c53622965
14567218c4c2cc
15285a32be1dd0
hex1420cca6871c

22131104974620 has 48 divisors (see below), whose sum is σ = 61967503936800. Its totient is φ = 5901588944896.

The previous prime is 22131104974603. The next prime is 22131104974651. The reversal of 22131104974620 is 2647940113122.

It is a super-2 number, since 2×221311049746202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8573056 + ... + 10851704.

It is an arithmetic number, because the mean of its divisors is an integer number (1290989665350).

Almost surely, 222131104974620 is an apocalyptic number.

22131104974620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131104974620 is an abundant number, since it is smaller than the sum of its proper divisors (39836398962180).

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

22131104974620 is a wasteful number, since it uses less digits than its factorization.

22131104974620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440534 (or 2440532 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 22131104974620 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred four million, nine hundred seventy-four thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 161873 323746 485619 647492 809365 971238 1618730 1942476 2278649 2428095 3237460 4557298 4856190 6835947 9114596 9712380 11393245 13671894 22786490 27343788 34179735 45572980 68359470 136718940 368851749577 737703499154 1106555248731 1475406998308 1844258747885 2213110497462 3688517495770 4426220994924 5532776243655 7377034991540 11065552487310 22131104974620