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89718701 = 412188261
BaseRepresentation
bin1010101100011…
…11111110101101
320020211011220212
411112033332231
5140431444301
612522552205
72136411362
oct526177655
9206734825
1089718701
1146709a96
1226068665
1315783bb7
14bcb6469
157d234bb
hex558ffad

89718701 has 4 divisors (see below), whose sum is σ = 91907004. Its totient is φ = 87530400.

The previous prime is 89718691. The next prime is 89718709. The reversal of 89718701 is 10781798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24900100 + 64818601 = 4990^2 + 8051^2 .

It is a cyclic number.

It is not a de Polignac number, because 89718701 - 26 = 89718637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2188261 = 89718701 / (8 + 9 + 7 + 1 + 8 + 7 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89718709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094090 + ... + 1094171.

It is an arithmetic number, because the mean of its divisors is an integer number (22976751).

Almost surely, 289718701 is an apocalyptic number.

It is an amenable number.

89718701 is a deficient number, since it is larger than the sum of its proper divisors (2188303).

89718701 is a wasteful number, since it uses less digits than its factorization.

89718701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188302.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 89718701 is about 9471.9956186645. The cubic root of 89718701 is about 447.6730930527.

The spelling of 89718701 in words is "eighty-nine million, seven hundred eighteen thousand, seven hundred one".

Divisors: 1 41 2188261 89718701