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70314240 = 283518311
BaseRepresentation
bin1000011000011…
…10100100000000
311220022100000010
410030032210000
5121000023430
610551024520
71512442533
oct414164400
9156270003
1070314240
1136766147
121b66b140
131174b879
1494a4a1a
15628dcb0
hex430e900

70314240 has 72 divisors (see below), whose sum is σ = 224578368. Its totient is φ = 18749440.

The previous prime is 70314239. The next prime is 70314263. The reversal of 70314240 is 4241307.

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, 5316 + ... + 12995.

It is an arithmetic number, because the mean of its divisors is an integer number (3119144).

Almost surely, 270314240 is an apocalyptic number.

It is an amenable number.

70314240 is an abundant number, since it is smaller than the sum of its proper divisors (154264128).

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

70314240 is a wasteful number, since it uses less digits than its factorization.

70314240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335 (or 18321 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 70314240 is about 8385.3586685365. The cubic root of 70314240 is about 412.7443107376.

Adding to 70314240 its reverse (4241307), we get a palindrome (74555547).

The spelling of 70314240 in words is "seventy million, three hundred fourteen thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3840 18311 36622 54933 73244 91555 109866 146488 183110 219732 274665 292976 366220 439464 549330 585952 732440 878928 1098660 1171904 1464880 1757856 2197320 2343808 2929760 3515712 4394640 4687616 5859520 7031424 8789280 11719040 14062848 17578560 23438080 35157120 70314240