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85744946 = 2731197569
BaseRepresentation
bin1010001110001…
…01110100110010
312222100021221202
411013011310302
5133422314241
612301451202
72060551160
oct507056462
9188307852
1085744946
11444454a1
1224870b02
13149c2271
14b560230
1577dad9b
hex51c5d32

85744946 has 16 divisors (see below), whose sum is σ = 151733760. Its totient is φ = 35562240.

The previous prime is 85744933. The next prime is 85744951. The reversal of 85744946 is 64944758.

It is a self number, because there is not a number n which added to its sum of digits gives 85744946.

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, 98351 + ... + 99218.

It is an arithmetic number, because the mean of its divisors is an integer number (9483360).

Almost surely, 285744946 is an apocalyptic number.

85744946 is a deficient number, since it is larger than the sum of its proper divisors (65988814).

85744946 is a wasteful number, since it uses less digits than its factorization.

85744946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197609.

The product of its digits is 967680, while the sum is 47.

The square root of 85744946 is about 9259.8566943555. The cubic root of 85744946 is about 440.9637038359.

The spelling of 85744946 in words is "eighty-five million, seven hundred forty-four thousand, nine hundred forty-six".

Divisors: 1 2 7 14 31 62 217 434 197569 395138 1382983 2765966 6124639 12249278 42872473 85744946