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85951392 = 2531934639
BaseRepresentation
bin1010001111110…
…00001110100000
312222201210010220
411013320032200
5134000421032
612310123040
72062401102
oct507701640
9188653126
1085951392
114457660a
1224950480
1314a65217
14b5b5572
15782c12c
hex51f83a0

85951392 has 48 divisors (see below), whose sum is σ = 226840320. Its totient is φ = 28495872.

The previous prime is 85951387. The next prime is 85951399. The reversal of 85951392 is 29315958.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (85951399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16209 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (4725840).

Almost surely, 285951392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85951392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113420160).

85951392 is an abundant number, since it is smaller than the sum of its proper divisors (140888928).

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

85951392 is a wasteful number, since it uses less digits than its factorization.

85951392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4837 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 85951392 is about 9270.9973573505. The cubic root of 85951392 is about 441.3173193493.

The spelling of 85951392 in words is "eighty-five million, nine hundred fifty-one thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 193 386 579 772 1158 1544 2316 3088 4632 4639 6176 9264 9278 13917 18528 18556 27834 37112 55668 74224 111336 148448 222672 445344 895327 1790654 2685981 3581308 5371962 7162616 10743924 14325232 21487848 28650464 42975696 85951392