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70068940 = 2255096883
BaseRepresentation
bin1000010110100…
…10101011001100
311212211212111221
410023102223030
5120414201230
610541453124
71510401424
oct413225314
9155755457
1070068940
1136608917
121b5711a4
1311694016
14943d484
15624127a
hex42d2acc

70068940 has 24 divisors (see below), whose sum is σ = 147455280. Its totient is φ = 27968448.

The previous prime is 70068937. The next prime is 70068949. The reversal of 70068940 is 4986007.

It is a junction number, because it is equal to n+sod(n) for n = 70068896 and 70068905.

It is not an unprimeable number, because it can be changed into a prime (70068949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6739 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (6143970).

Almost surely, 270068940 is an apocalyptic number.

It is an amenable number.

70068940 is an abundant number, since it is smaller than the sum of its proper divisors (77386340).

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

70068940 is a wasteful number, since it uses less digits than its factorization.

70068940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401 (or 7399 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 70068940 is about 8370.7192044651. The cubic root of 70068940 is about 412.2637814983.

The spelling of 70068940 in words is "seventy million, sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 509 1018 2036 2545 5090 6883 10180 13766 27532 34415 68830 137660 3503447 7006894 14013788 17517235 35034470 70068940