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151207972 = 22291303517
BaseRepresentation
bin10010000001101…
…00000000100100
3101112112011100021
421000310000210
5302202123342
623000524524
73514150366
oct1100640044
9345464307
10151207972
1178397873
1242780744
1325432996
1416120d36
15d41c567
hex9034024

151207972 has 12 divisors (see below), whose sum is σ = 273738780. Its totient is φ = 72996896.

The previous prime is 151207963. The next prime is 151207997. The reversal of 151207972 is 279702151.

It can be written as a sum of positive squares in 2 ways, for example, as 76143076 + 75064896 = 8726^2 + 8664^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651643 + ... + 651874.

It is an arithmetic number, because the mean of its divisors is an integer number (22811565).

Almost surely, 2151207972 is an apocalyptic number.

It is an amenable number.

151207972 is a deficient number, since it is larger than the sum of its proper divisors (122530808).

151207972 is a wasteful number, since it uses less digits than its factorization.

151207972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303550 (or 1303548 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 151207972 is about 12296.6650763530. The cubic root of 151207972 is about 532.7517638052.

It can be divided in two parts, 1512079 and 72, that added together give a palindrome (1512151).

The spelling of 151207972 in words is "one hundred fifty-one million, two hundred seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 29 58 116 1303517 2607034 5214068 37801993 75603986 151207972