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68849524 = 22171576449
BaseRepresentation
bin1000001101010…
…00111101110100
311210112220210101
410012220331310
5120111141044
610455403444
71464132322
oct406507564
9153486711
1068849524
1135955737
121b083584
1311357c83
149202d12
15609ecd4
hex41a8f74

68849524 has 24 divisors (see below), whose sum is σ = 128406600. Its totient is φ = 32188416.

The previous prime is 68849503. The next prime is 68849531. The reversal of 68849524 is 42594886.

It can be written as a sum of positive squares in 4 ways, for example, as 31248100 + 37601424 = 5590^2 + 6132^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 7452 + ... + 13900.

It is an arithmetic number, because the mean of its divisors is an integer number (5350275).

Almost surely, 268849524 is an apocalyptic number.

It is an amenable number.

68849524 is a deficient number, since it is larger than the sum of its proper divisors (59557076).

68849524 is a wasteful number, since it uses less digits than its factorization.

68849524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627 (or 6625 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 68849524 is about 8297.5613284868. The cubic root of 68849524 is about 409.8582178806.

The spelling of 68849524 in words is "sixty-eight million, eight hundred forty-nine thousand, five hundred twenty-four".

Divisors: 1 2 4 17 34 68 157 314 628 2669 5338 6449 10676 12898 25796 109633 219266 438532 1012493 2024986 4049972 17212381 34424762 68849524