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151211312412 = 22312600942701
BaseRepresentation
bin1000110011010011100…
…1011000010100011100
3112110022011202120010020
42030310321120110130
54434140043444122
6153244315112140
713632104643216
oct2146471302434
9473264676106
10151211312412
1159145931096
1225380442650
131134a504974
1474665c75b6
153e00101c5c
hex2334e5851c

151211312412 has 12 divisors (see below), whose sum is σ = 352826395656. Its totient is φ = 50403770800.

The previous prime is 151211312389. The next prime is 151211312419. The reversal of 151211312412 is 214213112151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1512113124122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151211312419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6300471339 + ... + 6300471362.

It is an arithmetic number, because the mean of its divisors is an integer number (29402199638).

Almost surely, 2151211312412 is an apocalyptic number.

151211312412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151211312412 is an abundant number, since it is smaller than the sum of its proper divisors (201615083244).

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

151211312412 is a wasteful number, since it uses less digits than its factorization.

151211312412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12600942708 (or 12600942706 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

Adding to 151211312412 its reverse (214213112151), we get a palindrome (365424424563).

The spelling of 151211312412 in words is "one hundred fifty-one billion, two hundred eleven million, three hundred twelve thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 12600942701 25201885402 37802828103 50403770804 75605656206 151211312412