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152500031 = 2295931123
BaseRepresentation
bin10010001011011…
…11011100111111
3101121221210201022
421011233130333
5303020000111
623044334355
73531141335
oct1105573477
9347853638
10152500031
117909a592
12430a43bb
1325795b08
1416379b55
15d5c52db
hex916f73f

152500031 has 8 divisors (see below), whose sum is σ = 153560880. Its totient is φ = 151443072.

The previous prime is 152500021. The next prime is 152500037. The reversal of 152500031 is 130005251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152500031 is a prime.

It is a super-2 number, since 2×1525000312 = 46512518910001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152499982 and 152500009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152500037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135236 + ... + 136358.

It is an arithmetic number, because the mean of its divisors is an integer number (19195110).

Almost surely, 2152500031 is an apocalyptic number.

152500031 is a deficient number, since it is larger than the sum of its proper divisors (1060849).

152500031 is a wasteful number, since it uses less digits than its factorization.

152500031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 152500031 is about 12349.0902903817. The cubic root of 152500031 is about 534.2649012760.

Adding to 152500031 its reverse (130005251), we get a palindrome (282505282).

The spelling of 152500031 in words is "one hundred fifty-two million, five hundred thousand, thirty-one".

Divisors: 1 229 593 1123 135797 257167 665939 152500031