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152225031 = 3729435813
BaseRepresentation
bin10010001001011…
…00010100000111
3101121102211111010
421010230110013
5302432200111
623034413303
73525614520
oct1104542407
9347384433
10152225031
1178a21a12
1242b91233
13256ca8aa
1416307847
15d56daa6
hex912c507

152225031 has 32 divisors (see below), whose sum is σ = 245583360. Its totient is φ = 82018944.

The previous prime is 152225027. The next prime is 152225033. The reversal of 152225031 is 130522251.

It is not a de Polignac number, because 152225031 - 22 = 152225027 is a prime.

It is a super-2 number, since 2×1522250312 = 46344920125901922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 152224989 and 152225007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152225033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23281 + ... + 29093.

It is an arithmetic number, because the mean of its divisors is an integer number (7674480).

Almost surely, 2152225031 is an apocalyptic number.

152225031 is a deficient number, since it is larger than the sum of its proper divisors (93358329).

152225031 is a wasteful number, since it uses less digits than its factorization.

152225031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 152225031 is about 12337.9508428264. The cubic root of 152225031 is about 533.9435652742.

Adding to 152225031 its reverse (130522251), we get a palindrome (282747282).

The spelling of 152225031 in words is "one hundred fifty-two million, two hundred twenty-five thousand, thirty-one".

Divisors: 1 3 7 21 29 43 87 129 203 301 609 903 1247 3741 5813 8729 17439 26187 40691 122073 168577 249959 505731 749877 1180039 1749713 3540117 5249139 7248811 21746433 50741677 152225031