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69794140 = 22513268439
BaseRepresentation
bin1000010100011…
…11100101011100
311212022220120011
410022033211130
5120331403030
610531533004
71505145313
oct412174534
9155286504
1069794140
1136440409
121b45a164
13115c8c10
1493ab27a
1561d9b2a
hex428f95c

69794140 has 24 divisors (see below), whose sum is σ = 157842720. Its totient is φ = 25770048.

The previous prime is 69794089. The next prime is 69794141. The reversal of 69794140 is 4149796.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69794093 and 69794102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69794141) by changing a digit.

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, 133960 + ... + 134479.

It is an arithmetic number, because the mean of its divisors is an integer number (6576780).

Almost surely, 269794140 is an apocalyptic number.

It is an amenable number.

69794140 is an abundant number, since it is smaller than the sum of its proper divisors (88048580).

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

69794140 is a wasteful number, since it uses less digits than its factorization.

69794140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268461 (or 268459 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 69794140 is about 8354.2887189754. The cubic root of 69794140 is about 411.7241295831.

The spelling of 69794140 in words is "sixty-nine million, seven hundred ninety-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 268439 536878 1073756 1342195 2684390 3489707 5368780 6979414 13958828 17448535 34897070 69794140