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152909469 = 3216989941
BaseRepresentation
bin10010001110100…
…11011010011101
3101122201121100200
421013103122131
5303121100334
623101214113
73534465126
oct1107233235
9348647320
10152909469
117934a169
1243261339
13258aa29b
141644504d
15d656799
hex91d369d

152909469 has 6 divisors (see below), whose sum is σ = 220869246. Its totient is φ = 101939640.

The previous prime is 152909467. The next prime is 152909503. The reversal of 152909469 is 964909251.

It can be written as a sum of positive squares in only one way, i.e., 147914244 + 4995225 = 12162^2 + 2235^2 .

It is not a de Polignac number, because 152909469 - 21 = 152909467 is a prime.

It is a super-2 number, since 2×1529094692 = 46762611419723922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152909467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8494962 + ... + 8494979.

It is an arithmetic number, because the mean of its divisors is an integer number (36811541).

Almost surely, 2152909469 is an apocalyptic number.

It is an amenable number.

152909469 is a deficient number, since it is larger than the sum of its proper divisors (67959777).

152909469 is a wasteful number, since it uses less digits than its factorization.

152909469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16989947 (or 16989944 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 152909469 is about 12365.6568365777. The cubic root of 152909469 is about 534.7426123835.

The spelling of 152909469 in words is "one hundred fifty-two million, nine hundred nine thousand, four hundred sixty-nine".

Divisors: 1 3 9 16989941 50969823 152909469