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70230961 = 179374409
BaseRepresentation
bin1000010111110…
…10001110110001
311220011002202201
410023322032301
5120434342321
610545143201
71511644663
oct413721661
9156132681
1070230961
1136709619
121b62ab01
131171c9a8
149482533
156274291
hex42fa3b1

70230961 has 8 divisors (see below), whose sum is σ = 74458440. Its totient is φ = 66014208.

The previous prime is 70230959. The next prime is 70230977. The reversal of 70230961 is 16903207.

It can be written as a sum of positive squares in 4 ways, for example, as 6561 + 70224400 = 81^2 + 8380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70230961 - 21 = 70230959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70230761) 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, 13725 + ... + 18133.

It is an arithmetic number, because the mean of its divisors is an integer number (9307305).

Almost surely, 270230961 is an apocalyptic number.

It is an amenable number.

70230961 is a deficient number, since it is larger than the sum of its proper divisors (4227479).

70230961 is a wasteful number, since it uses less digits than its factorization.

70230961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 70230961 is about 8380.3914586372. The cubic root of 70230961 is about 412.5812972303.

The spelling of 70230961 in words is "seventy million, two hundred thirty thousand, nine hundred sixty-one".

Divisors: 1 17 937 4409 15929 74953 4131233 70230961