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69031042 = 234515521
BaseRepresentation
bin1000001110101…
…01010010000010
311210220010210021
410013111102002
5120132443132
610503324054
71465516453
oct407252202
9153803707
1069031042
1135a6a053
121b15062a
13113bc792
14924d12a
1560d8997
hex41d5482

69031042 has 4 divisors (see below), whose sum is σ = 103546566. Its totient is φ = 34515520.

The previous prime is 69031021. The next prime is 69031091. The reversal of 69031042 is 24013096.

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., 66569281 + 2461761 = 8159^2 + 1569^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69030998 and 69031016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17257759 + ... + 17257762.

Almost surely, 269031042 is an apocalyptic number.

69031042 is a deficient number, since it is larger than the sum of its proper divisors (34515524).

69031042 is a wasteful number, since it uses less digits than its factorization.

69031042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34515523.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 69031042 is about 8308.4921616380. The cubic root of 69031042 is about 410.2180913863.

The spelling of 69031042 in words is "sixty-nine million, thirty-one thousand, forty-two".

Divisors: 1 2 34515521 69031042