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68874036 = 223711131569
BaseRepresentation
bin1000001101011…
…10111100110100
311210121011102020
410012232330310
5120112432121
610500113140
71464263640
oct406567464
9153534366
1068874036
11359720a0
121b0957b0
131136618a
14920bc20
1560a71c6
hex41aef34

68874036 has 96 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 17721600.

The previous prime is 68874019. The next prime is 68874041. The reversal of 68874036 is 63047886.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120760 + ... + 121328.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 268874036 is an apocalyptic number.

68874036 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68874036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101122560).

68874036 is an abundant number, since it is smaller than the sum of its proper divisors (133371084).

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

68874036 is a wasteful number, since it uses less digits than its factorization.

68874036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 68874036 is about 8299.0382575332. The cubic root of 68874036 is about 409.9068517323.

The spelling of 68874036 in words is "sixty-eight million, eight hundred seventy-four thousand, thirty-six".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 131 132 154 231 262 308 393 462 524 569 786 917 924 1138 1441 1572 1707 1834 2276 2751 2882 3414 3668 3983 4323 5502 5764 6259 6828 7966 8646 10087 11004 11949 12518 15932 17292 18777 20174 23898 25036 30261 37554 40348 43813 47796 60522 74539 75108 87626 121044 131439 149078 175252 223617 262878 298156 447234 521773 525756 819929 894468 1043546 1565319 1639858 2087092 2459787 3130638 3279716 4919574 5739503 6261276 9839148 11479006 17218509 22958012 34437018 68874036