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151238313 = 3328319793
BaseRepresentation
bin10010000001110…
…11011010101001
3101112120200222000
421000323122221
5302204111223
623001321213
73514335012
oct1100733251
9345520860
10151238313
1178408646
1242796209
1325443735
141612c009
15d426543
hex903b6a9

151238313 has 16 divisors (see below), whose sum is σ = 224859840. Its totient is φ = 100464192.

The previous prime is 151238303. The next prime is 151238357. The reversal of 151238313 is 313832151.

It is not a de Polignac number, because 151238313 - 25 = 151238281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (151238303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256 + ... + 17537.

It is an arithmetic number, because the mean of its divisors is an integer number (14053740).

Almost surely, 2151238313 is an apocalyptic number.

It is an amenable number.

151238313 is a deficient number, since it is larger than the sum of its proper divisors (73621527).

151238313 is a wasteful number, since it uses less digits than its factorization.

151238313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20085 (or 20079 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 151238313 is about 12297.8987229526. The cubic root of 151238313 is about 532.7873949518.

It can be divided in two parts, 15123 and 8313, that added together give a triangular number (23436 = T216).

The spelling of 151238313 in words is "one hundred fifty-one million, two hundred thirty-eight thousand, three hundred thirteen".

Divisors: 1 3 9 27 283 849 2547 7641 19793 59379 178137 534411 5601419 16804257 50412771 151238313