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351240131012 = 22237353479781
BaseRepresentation
bin1010001110001111000…
…10110001000111000100
31020120121112021101022012
411013013202301013010
521223314433143022
6425205114553352
734243025565401
oct5070742610704
91216545241265
10351240131012
11125a61996111
12580a5738858
13271777a4164
141300044b2a8
15920ad69de2
hex51c78b11c4

351240131012 has 48 divisors (see below), whose sum is σ = 650369338752. Its totient is φ = 165635331840.

The previous prime is 351240131003. The next prime is 351240131027. The reversal of 351240131012 is 210131042153.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35905562 + ... + 35915342.

It is an arithmetic number, because the mean of its divisors is an integer number (13549361224).

Almost surely, 2351240131012 is an apocalyptic number.

It is an amenable number.

351240131012 is a deficient number, since it is larger than the sum of its proper divisors (299129207740).

351240131012 is a wasteful number, since it uses less digits than its factorization.

351240131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228 (or 15226 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 351240131012 its reverse (210131042153), we get a palindrome (561371173165).

The spelling of 351240131012 in words is "three hundred fifty-one billion, two hundred forty million, one hundred thirty-one thousand, twelve".

Divisors: 1 2 4 23 46 73 92 146 292 1679 3358 5347 6716 9781 10694 19562 21388 39124 122981 224963 245962 390331 449926 491924 714013 780662 899852 1428026 1561324 2856052 8977613 16422299 17955226 32844598 35910452 52299007 65689196 104598014 209196028 1202877161 2405754322 3817827511 4811508644 7635655022 15271310044 87810032753 175620065506 351240131012