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69430506 = 2330737693
BaseRepresentation
bin1000010001101…
…10110011101010
311211122102202020
410020312303222
5120233234011
610520045310
71502102205
oct410666352
9154572666
1069430506
1136212192
121b303836
13114cc552
14931493c
156167006
hex4236cea

69430506 has 16 divisors (see below), whose sum is σ = 139317024. Its totient is φ = 23067504.

The previous prime is 69430469. The next prime is 69430513. The reversal of 69430506 is 60503496.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17005 + ... + 20688.

It is an arithmetic number, because the mean of its divisors is an integer number (8707314).

Almost surely, 269430506 is an apocalyptic number.

69430506 is an abundant number, since it is smaller than the sum of its proper divisors (69886518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69430506 is a wasteful number, since it uses less digits than its factorization.

69430506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38005.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 69430506 is about 8332.4969846979. The cubic root of 69430506 is about 411.0078437537.

The spelling of 69430506 in words is "sixty-nine million, four hundred thirty thousand, five hundred six".

Divisors: 1 2 3 6 307 614 921 1842 37693 75386 113079 226158 11571751 23143502 34715253 69430506