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152402031 = 32101389431
BaseRepresentation
bin10010001010101…
…11100001101111
3101121202211021200
421011113201233
5303003331111
623042300543
73530252535
oct1105274157
9347684250
10152402031
11790329a1
1243057753
1325760322
1416352155
15d5a6256
hex915786f

152402031 has 24 divisors (see below), whose sum is σ = 223404480. Its totient is φ = 100104000.

The previous prime is 152402017. The next prime is 152402051. The reversal of 152402031 is 130204251.

It is not a de Polignac number, because 152402031 - 26 = 152401967 is a prime.

It is a super-2 number, since 2×1524020312 = 46452758105849922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 152401995 and 152402013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152402011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353386 + ... + 353816.

It is an arithmetic number, because the mean of its divisors is an integer number (9308520).

Almost surely, 2152402031 is an apocalyptic number.

152402031 is a deficient number, since it is larger than the sum of its proper divisors (71002449).

152402031 is a wasteful number, since it uses less digits than its factorization.

152402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 152402031 is about 12345.1217490959. The cubic root of 152402031 is about 534.1504331467.

Adding to 152402031 its reverse (130204251), we get a palindrome (282606282).

It can be divided in two parts, 15240 and 2031, that added together give a palindrome (17271).

The spelling of 152402031 in words is "one hundred fifty-two million, four hundred two thousand, thirty-one".

Divisors: 1 3 9 101 303 389 431 909 1167 1293 3501 3879 39289 43531 117867 130593 167659 353601 391779 502977 1508931 16933559 50800677 152402031