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68383677474 = 23272332329303
BaseRepresentation
bin111111101011111111…
…000001110000100010
320112111202221202012100
4333223333001300202
52110022210134344
651225351311230
74640416445040
oct775377016042
9215452852170
1068383677474
1127001892032
121130567b516
1365aa6182a8
14344a0b3390
151ba378a569
hexfebfc1c22

68383677474 has 48 divisors (see below), whose sum is σ = 170057826432. Its totient is φ = 19454330304.

The previous prime is 68383677457. The next prime is 68383677521. The reversal of 68383677474 is 47477638386.

It is a happy number.

68383677474 is a `hidden beast` number, since 6 + 83 + 83 + 6 + 7 + 7 + 474 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135294 + ... + 1194009.

It is an arithmetic number, because the mean of its divisors is an integer number (3542871384).

Almost surely, 268383677474 is an apocalyptic number.

68383677474 is an abundant number, since it is smaller than the sum of its proper divisors (101674148958).

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

68383677474 is a wasteful number, since it uses less digits than its factorization.

68383677474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329551 (or 2329548 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 63.

The spelling of 68383677474 in words is "sixty-eight billion, three hundred eighty-three million, six hundred seventy-seven thousand, four hundred seventy-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 233 466 699 1398 1631 2097 3262 4194 4893 9786 14679 29358 2329303 4658606 6987909 13975818 16305121 20963727 32610242 41927454 48915363 97830726 146746089 293492178 542727599 1085455198 1628182797 3256365594 3799093193 4884548391 7598186386 9769096782 11397279579 22794559158 34191838737 68383677474