Search a number
-
+
31010214200 = 2352750943517
BaseRepresentation
bin11100111000010110…
…100101000100111000
32222001011012002201212
4130320112211010320
51002002103323300
622125040302252
72145314320520
oct347026450470
988034162655
1031010214200
11121735039a9
126015311988
132c0276a494
141702694680
15c17676935
hex7385a5138

31010214200 has 96 divisors (see below), whose sum is σ = 82562349600. Its totient is φ = 10610941440.

The previous prime is 31010214133. The next prime is 31010214227. The reversal of 31010214200 is 241201013.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 690842 + ... + 734358.

It is an arithmetic number, because the mean of its divisors is an integer number (860024475).

Almost surely, 231010214200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31010214200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41281174800).

31010214200 is an abundant number, since it is smaller than the sum of its proper divisors (51552135400).

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

31010214200 is a wasteful number, since it uses less digits than its factorization.

31010214200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44049 (or 44040 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31010214200 its reverse (241201013), we get a palindrome (31251415213).

The spelling of 31010214200 in words is "thirty-one billion, ten million, two hundred fourteen thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 509 700 1018 1400 2036 2545 3563 4072 5090 7126 10180 12725 14252 17815 20360 25450 28504 35630 43517 50900 71260 87034 89075 101800 142520 174068 178150 217585 304619 348136 356300 435170 609238 712600 870340 1087925 1218476 1523095 1740680 2175850 2436952 3046190 4351700 6092380 7615475 8703400 12184760 15230950 22150153 30461900 44300306 60923800 88600612 110750765 155051071 177201224 221501530 310102142 443003060 553753825 620204284 775255355 886006120 1107507650 1240408568 1550510710 2215015300 3101021420 3876276775 4430030600 6202042840 7752553550 15505107100 31010214200