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70910946 = 2323939497
BaseRepresentation
bin1000011101000…
…00001111100010
311221102122112100
410032200033202
5121123122241
611011511230
71520506311
oct416401742
9157378470
1070910946
1137033497
121b8b8516
13118ca352
1495bc278
15635a9b6
hex43a03e2

70910946 has 12 divisors (see below), whose sum is σ = 153640422. Its totient is φ = 23636976.

The previous prime is 70910923. The next prime is 70910947. The reversal of 70910946 is 64901907.

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 20657025 = 7089^2 + 4545^2 .

It is a super-2 number, since 2×709109462 = 10056724525229832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70910946.

It is not an unprimeable number, because it can be changed into a prime (70910947) 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 5 ways as a sum of consecutive naturals, for example, 1969731 + ... + 1969766.

Almost surely, 270910946 is an apocalyptic number.

70910946 is an abundant number, since it is smaller than the sum of its proper divisors (82729476).

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

70910946 is a wasteful number, since it uses less digits than its factorization.

70910946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939505 (or 3939502 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 70910946 is about 8420.8637324208. The cubic root of 70910946 is about 413.9085774464.

The spelling of 70910946 in words is "seventy million, nine hundred ten thousand, nine hundred forty-six".

Divisors: 1 2 3 6 9 18 3939497 7878994 11818491 23636982 35455473 70910946