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81468702 = 2327646577
BaseRepresentation
bin1001101101100…
…01110100011110
312200022001001100
410312301310132
5131323444302
612030053530
72006321040
oct466616436
9180261040
1081468702
1141a94707
122334a2a6
1313b55a43
14ab69a90
157243d1c
hex4db1d1e

81468702 has 24 divisors (see below), whose sum is σ = 201732336. Its totient is φ = 23276736.

The previous prime is 81468701. The next prime is 81468757. The reversal of 81468702 is 20786418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81468701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323163 + ... + 323414.

It is an arithmetic number, because the mean of its divisors is an integer number (8405514).

Almost surely, 281468702 is an apocalyptic number.

81468702 is an abundant number, since it is smaller than the sum of its proper divisors (120263634).

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

81468702 is a wasteful number, since it uses less digits than its factorization.

81468702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646592 (or 646589 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 81468702 is about 9026.0014402835. The cubic root of 81468702 is about 433.5078162565.

The spelling of 81468702 in words is "eighty-one million, four hundred sixty-eight thousand, seven hundred two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 646577 1293154 1939731 3879462 4526039 5819193 9052078 11638386 13578117 27156234 40734351 81468702