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229764280 = 2355744107
BaseRepresentation
bin11011011000111…
…10110010111000
3121000100020100011
431230132302320
5432304424110
634444351304
75456651464
oct1554366270
9530306304
10229764280
11108772339
1264b45534
13387a8bc5
142272d4a4
151528848a
hexdb1ecb8

229764280 has 16 divisors (see below), whose sum is σ = 516969720. Its totient is φ = 91905696.

The previous prime is 229764229. The next prime is 229764331. The reversal of 229764280 is 82467922.

It is an interprime number because it is at equal distance from previous prime (229764229) and next prime (229764331).

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 5744107 = 229764280 / (2 + 2 + 9 + 7 + 6 + 4 + 2 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872014 + ... + 2872093.

Almost surely, 2229764280 is an apocalyptic number.

229764280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229764280 is an abundant number, since it is smaller than the sum of its proper divisors (287205440).

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

229764280 is a wasteful number, since it uses less digits than its factorization.

229764280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744118 (or 5744114 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 229764280 is about 15157.9774376399. The cubic root of 229764280 is about 612.4831859885.

The spelling of 229764280 in words is "two hundred twenty-nine million, seven hundred sixty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 5744107 11488214 22976428 28720535 45952856 57441070 114882140 229764280