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70126091 = 715763809
BaseRepresentation
bin1000010111000…
…00101000001011
311212221202220122
410023200220023
5120423013331
610543013455
71511030150
oct413405013
9155852818
1070126091
1136647852
121b59a28b
13116b4039
149456227
15625317b
hex42e0a0b

70126091 has 8 divisors (see below), whose sum is σ = 80655840. Its totient is φ = 59724288.

The previous prime is 70126087. The next prime is 70126099. The reversal of 70126091 is 19062107.

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 70126091 - 22 = 70126087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70126091.

It is not an unprimeable number, because it can be changed into a prime (70126099) 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, 30806 + ... + 33003.

It is an arithmetic number, because the mean of its divisors is an integer number (10081980).

Almost surely, 270126091 is an apocalyptic number.

70126091 is a deficient number, since it is larger than the sum of its proper divisors (10529749).

70126091 is a wasteful number, since it uses less digits than its factorization.

70126091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63973.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 70126091 is about 8374.1322535532. The cubic root of 70126091 is about 412.3758372557.

Adding to 70126091 its reverse (19062107), we get a palindrome (89188198).

The spelling of 70126091 in words is "seventy million, one hundred twenty-six thousand, ninety-one".

Divisors: 1 7 157 1099 63809 446663 10018013 70126091