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70231724 = 22471792087
BaseRepresentation
bin1000010111110…
…10011010101100
311220011010210222
410023322122230
5120434403344
610545150512
71511650133
oct413723254
9156133728
1070231724
113670a152
121b62b438
1311720144
14948291a
1562745ee
hex42fa6ac

70231724 has 24 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 34160336.

The previous prime is 70231699. The next prime is 70231741. The reversal of 70231724 is 42713207.

It is a junction number, because it is equal to n+sod(n) for n = 70231693 and 70231702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32609 + ... + 34695.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 270231724 is an apocalyptic number.

It is an amenable number.

70231724 is a deficient number, since it is larger than the sum of its proper divisors (56050516).

70231724 is a wasteful number, since it uses less digits than its factorization.

70231724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70231724 is about 8380.4369814467. The cubic root of 70231724 is about 412.5827913405.

The spelling of 70231724 in words is "seventy million, two hundred thirty-one thousand, seven hundred twenty-four".

Divisors: 1 2 4 47 94 179 188 358 716 2087 4174 8348 8413 16826 33652 98089 196178 373573 392356 747146 1494292 17557931 35115862 70231724