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253672680 = 23352113939
BaseRepresentation
bin11110001111010…
…11110011101000
3122200022220111110
433013223303220
51004420011210
641101030320
76200116332
oct1707536350
9580286443
10253672680
11120212048
1270b553a0
134072a2a1
1425994452
151740c420
hexf1ebce8

253672680 has 32 divisors (see below), whose sum is σ = 761018400. Its totient is φ = 67646016.

The previous prime is 253672633. The next prime is 253672687. The reversal of 253672680 is 86276352.

It is not an unprimeable number, because it can be changed into a prime (253672687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056850 + ... + 1057089.

It is an arithmetic number, because the mean of its divisors is an integer number (23781825).

Almost surely, 2253672680 is an apocalyptic number.

253672680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253672680 is an abundant number, since it is smaller than the sum of its proper divisors (507345720).

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

253672680 is a wasteful number, since it uses less digits than its factorization.

253672680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113953 (or 2113949 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 253672680 is about 15927.1051983717. The cubic root of 253672680 is about 633.0303986759.

The spelling of 253672680 in words is "two hundred fifty-three million, six hundred seventy-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 2113939 4227878 6341817 8455756 10569695 12683634 16911512 21139390 25367268 31709085 42278780 50734536 63418170 84557560 126836340 253672680