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152640001 = 3124120431
BaseRepresentation
bin10010001100100…
…01101000000001
3101122012220201101
421012101220001
5303033440001
623051334401
73532263403
oct1106215001
9348186641
10152640001
1179185768
1243151401
1325814737
14163b4b73
15d601a01
hex9191a01

152640001 has 8 divisors (see below), whose sum is σ = 158225408. Its totient is φ = 147096000.

The previous prime is 152639959. The next prime is 152640013. The reversal of 152640001 is 100046251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152640001 - 225 = 119085569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152640031) 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, 2745 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (19778176).

Almost surely, 2152640001 is an apocalyptic number.

It is an amenable number.

152640001 is a deficient number, since it is larger than the sum of its proper divisors (5585407).

152640001 is a wasteful number, since it uses less digits than its factorization.

152640001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 152640001 is about 12354.7562096546. The cubic root of 152640001 is about 534.4283071247.

Adding to 152640001 its reverse (100046251), we get a palindrome (252686252).

The spelling of 152640001 in words is "one hundred fifty-two million, six hundred forty thousand, one".

Divisors: 1 31 241 7471 20431 633361 4923871 152640001