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89402 = 244701
BaseRepresentation
bin10101110100111010
311112122012
4111310322
510330102
61525522
7521435
oct256472
9145565
1089402
1161195
12438a2
1331901
142481c
151b752
hex15d3a

89402 has 4 divisors (see below), whose sum is σ = 134106. Its totient is φ = 44700.

The previous prime is 89399. The next prime is 89413. The reversal of 89402 is 20498.

It is a Cunningham number, because it is equal to 2992+1.

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

It can be written as a sum of positive squares in only one way, i.e., 89401 + 1 = 299^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22349 + ... + 22352.

289402 is an apocalyptic number.

89402 is a deficient number, since it is larger than the sum of its proper divisors (44704).

89402 is a wasteful number, since it uses less digits than its factorization.

89402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44703.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 89402 is about 299.0016722361. The cubic root of 89402 is about 44.7145720032.

It can be divided in two parts, 89 and 402, that multiplied together give a triangular number (35778 = T267).

The spelling of 89402 in words is "eighty-nine thousand, four hundred two".

Divisors: 1 2 44701 89402