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70683984 = 2432770123
BaseRepresentation
bin1000011011010…
…00110101010000
311221000010012100
410031220311100
5121043341414
611003000400
71515542520
oct415506520
9157003170
1070683984
1136998a18
121b809100
131184ac57
14955d680
156313609
hex4368d50

70683984 has 60 divisors (see below), whose sum is σ = 226079776. Its totient is φ = 20195136.

The previous prime is 70683983. The next prime is 70684001. The reversal of 70683984 is 48938607.

It is a happy number.

It is a super-2 number, since 2×706839842 = 9992451188224512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70683983) 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 11 ways as a sum of consecutive naturals, for example, 34054 + ... + 36069.

Almost surely, 270683984 is an apocalyptic number.

It is an amenable number.

70683984 is an abundant number, since it is smaller than the sum of its proper divisors (155395792).

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

70683984 is a wasteful number, since it uses less digits than its factorization.

70683984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70144 (or 70135 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 70683984 is about 8407.3767609166. The cubic root of 70683984 is about 413.4665115996.

The spelling of 70683984 in words is "seventy million, six hundred eighty-three thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 70123 140246 210369 280492 420738 490861 560984 631107 841476 981722 1121968 1262214 1472583 1682952 1963444 2524428 2945166 3365904 3926888 4417749 5048856 5890332 7853776 8835498 10097712 11780664 17670996 23561328 35341992 70683984