Search a number
-
+
31955435350 = 252639108707
BaseRepresentation
bin11101110000101100…
…010011111101010110
310001111000210022101121
4131300230103331112
51010421042412400
622402523514154
72210612501356
oct356054237526
9101430708347
1031955435350
1112609012603
12623998895a
133023538037
141792022b66
15c7063721a
hex770b13f56

31955435350 has 12 divisors (see below), whose sum is σ = 59437109844. Its totient is φ = 12782174120.

The previous prime is 31955435339. The next prime is 31955435353. The reversal of 31955435350 is 5353455913.

It is a super-2 number, since 2×319554353502 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31955435297 and 31955435306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31955435353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319554304 + ... + 319554403.

It is an arithmetic number, because the mean of its divisors is an integer number (4953092487).

Almost surely, 231955435350 is an apocalyptic number.

31955435350 is a deficient number, since it is larger than the sum of its proper divisors (27481674494).

31955435350 is a wasteful number, since it uses less digits than its factorization.

31955435350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639108719 (or 639108714 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 43.

The spelling of 31955435350 in words is "thirty-one billion, nine hundred fifty-five million, four hundred thirty-five thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 639108707 1278217414 3195543535 6391087070 15977717675 31955435350