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152275240 = 23513292837
BaseRepresentation
bin10010001001110…
…00100100101000
3101121112101100201
421010320210220
5302440301430
623035441544
73526214065
oct1104704450
9347471321
10152275240
1178a56707
1242bb62b4
13257176c0
141631bc6c
15d57d8ca
hex9138928

152275240 has 32 divisors (see below), whose sum is σ = 368975880. Its totient is φ = 56224512.

The previous prime is 152275237. The next prime is 152275247. The reversal of 152275240 is 42572251.

It can be written as a sum of positive squares in 4 ways, for example, as 119990116 + 32285124 = 10954^2 + 5682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 152275199 and 152275208.

It is not an unprimeable number, because it can be changed into a prime (152275247) 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, 145899 + ... + 146938.

Almost surely, 2152275240 is an apocalyptic number.

152275240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152275240 is an abundant number, since it is smaller than the sum of its proper divisors (216700640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152275240 is a wasteful number, since it uses less digits than its factorization.

152275240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292861 (or 292857 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 152275240 is about 12339.9854132815. The cubic root of 152275240 is about 534.0022630792.

The spelling of 152275240 in words is "one hundred fifty-two million, two hundred seventy-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 292837 585674 1171348 1464185 2342696 2928370 3806881 5856740 7613762 11713480 15227524 19034405 30455048 38068810 76137620 152275240