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151308913 = 7219162523
BaseRepresentation
bin10010000010011…
…00101001110001
3101112201021210211
421001030221301
5302213341123
623003024121
73515050600
oct1101145161
9345637724
10151308913
1178456698
124280b041
1325469902
1416149a37
15d43c40d
hex904ca71

151308913 has 12 divisors (see below), whose sum is σ = 185277360. Its totient is φ = 122866632.

The previous prime is 151308889. The next prime is 151308919. The reversal of 151308913 is 319803151.

It is not a de Polignac number, because 151308913 - 29 = 151308401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151308919) 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 11 ways as a sum of consecutive naturals, for example, 80331 + ... + 82192.

It is an arithmetic number, because the mean of its divisors is an integer number (15439780).

Almost surely, 2151308913 is an apocalyptic number.

It is an amenable number.

151308913 is a deficient number, since it is larger than the sum of its proper divisors (33968447).

151308913 is a wasteful number, since it uses less digits than its factorization.

151308913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162556 (or 162549 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 151308913 is about 12300.7687971118. The cubic root of 151308913 is about 532.8702860698.

The spelling of 151308913 in words is "one hundred fifty-one million, three hundred eight thousand, nine hundred thirteen".

Divisors: 1 7 19 49 133 931 162523 1137661 3087937 7963627 21615559 151308913