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70670860 = 22513271811
BaseRepresentation
bin1000011011001…
…01101000001100
311220222110012021
410031211220030
5121042431420
611002415524
71515456331
oct415455014
9156873167
1070670860
113698a077
121b8015a4
1311844ca0
149558988
15630e7aa
hex4365a0c

70670860 has 24 divisors (see below), whose sum is σ = 159825456. Its totient is φ = 26093760.

The previous prime is 70670857. The next prime is 70670903. The reversal of 70670860 is 6807607.

It is an unprimeable number.

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, 135646 + ... + 136165.

It is an arithmetic number, because the mean of its divisors is an integer number (6659394).

Almost surely, 270670860 is an apocalyptic number.

It is an amenable number.

70670860 is an abundant number, since it is smaller than the sum of its proper divisors (89154596).

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

70670860 is a wasteful number, since it uses less digits than its factorization.

70670860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271833 (or 271831 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 70670860 is about 8406.5962196361. The cubic root of 70670860 is about 413.4409203691.

The spelling of 70670860 in words is "seventy million, six hundred seventy thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 271811 543622 1087244 1359055 2718110 3533543 5436220 7067086 14134172 17667715 35335430 70670860