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152647490 = 2538939241
BaseRepresentation
bin10010001100100…
…11011101000010
3101122020021222202
421012103131002
5303034204430
623051433202
73532324262
oct1106233502
9348207882
10152647490
1179190356
1243155802
1325817c78
14163b77a2
15d603d45
hex9193742

152647490 has 16 divisors (see below), whose sum is σ = 275478840. Its totient is φ = 60900480.

The previous prime is 152647477. The next prime is 152647499. The reversal of 152647490 is 94746251.

It can be written as a sum of positive squares in 4 ways, for example, as 83375161 + 69272329 = 9131^2 + 8323^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152647499) 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, 15731 + ... + 23510.

Almost surely, 2152647490 is an apocalyptic number.

152647490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152647490 is a deficient number, since it is larger than the sum of its proper divisors (122831350).

152647490 is a wasteful number, since it uses less digits than its factorization.

152647490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39637.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 152647490 is about 12355.0592875955. The cubic root of 152647490 is about 534.4370472280.

The spelling of 152647490 in words is "one hundred fifty-two million, six hundred forty-seven thousand, four hundred ninety".

Divisors: 1 2 5 10 389 778 1945 3890 39241 78482 196205 392410 15264749 30529498 76323745 152647490