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70183940 = 2258114327
BaseRepresentation
bin1000010111011…
…10110000000100
311220001201021012
410023232300010
5120431341230
610544141352
71511360621
oct413566004
9156051235
1070183940
1136687262
121b607858
1311704478
14946d348
156265395
hex42eec04

70183940 has 24 divisors (see below), whose sum is σ = 147602112. Its totient is φ = 28032480.

The previous prime is 70183937. The next prime is 70183943. The reversal of 70183940 is 4938107.

It is an interprime number because it is at equal distance from previous prime (70183937) and next prime (70183943).

It is a junction number, because it is equal to n+sod(n) for n = 70183897 and 70183906.

It is not an unprimeable number, because it can be changed into a prime (70183943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14057 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (6150088).

Almost surely, 270183940 is an apocalyptic number.

It is an amenable number.

70183940 is an abundant number, since it is smaller than the sum of its proper divisors (77418172).

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

70183940 is a wasteful number, since it uses less digits than its factorization.

70183940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5145 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 70183940 is about 8377.5855710342. The cubic root of 70183940 is about 412.4891995948.

The spelling of 70183940 in words is "seventy million, one hundred eighty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 811 1622 3244 4055 4327 8110 8654 16220 17308 21635 43270 86540 3509197 7018394 14036788 17545985 35091970 70183940