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152133031 = 473236873
BaseRepresentation
bin10010001000101…
…01110110100111
3101121021011021201
421010111312213
5302421224111
623032423331
73525052351
oct1104256647
9347234251
10152133031
1178969886
1242b47b47
1325697a5b
14162c20d1
15d5516c1
hex9115da7

152133031 has 4 divisors (see below), whose sum is σ = 155369952. Its totient is φ = 148896112.

The previous prime is 152133029. The next prime is 152133041. The reversal of 152133031 is 130331251.

152133031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152133031 - 21 = 152133029 is a prime.

It is a super-2 number, since 2×1521330312 = 46288918242493922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152133041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618390 + ... + 1618483.

It is an arithmetic number, because the mean of its divisors is an integer number (38842488).

Almost surely, 2152133031 is an apocalyptic number.

152133031 is a deficient number, since it is larger than the sum of its proper divisors (3236921).

152133031 is an equidigital number, since it uses as much as digits as its factorization.

152133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236920.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 152133031 is about 12334.2219454654. The cubic root of 152133031 is about 533.8359773891.

Adding to 152133031 its reverse (130331251), we get a palindrome (282464282).

The spelling of 152133031 in words is "one hundred fifty-two million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 47 3236873 152133031