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70744336 = 2413340117
BaseRepresentation
bin1000011011101…
…11100100010000
311221010011222121
410031313210100
5121102304321
611004144024
71516213465
oct415674420
9157104877
1070744336
1136a2a2a3
121b838014
131186c570
14957766c
156326441
hex4377910

70744336 has 20 divisors (see below), whose sum is σ = 147611212. Its totient is φ = 32651136.

The previous prime is 70744319. The next prime is 70744337. The reversal of 70744336 is 63344707.

It can be written as a sum of positive squares in 2 ways, for example, as 16810000 + 53934336 = 4100^2 + 7344^2 .

It is a super-2 number, since 2×707443362 = 10009522152161792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70744337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169851 + ... + 170266.

Almost surely, 270744336 is an apocalyptic number.

It is an amenable number.

70744336 is an abundant number, since it is smaller than the sum of its proper divisors (76866876).

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

70744336 is a wasteful number, since it uses less digits than its factorization.

70744336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340138 (or 340132 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 70744336 is about 8410.9652240394. The cubic root of 70744336 is about 413.5841546207.

The spelling of 70744336 in words is "seventy million, seven hundred forty-four thousand, three hundred thirty-six".

Divisors: 1 2 4 8 13 16 26 52 104 208 340117 680234 1360468 2720936 4421521 5441872 8843042 17686084 35372168 70744336