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86912952 = 23372383271
BaseRepresentation
bin1010010111000…
…10111110111000
320001112122011020
411023202332320
5134222203302
612342502440
72103514350
oct513427670
9201478136
1086912952
1145072a95
1225134a20
1315010aa9
14b785b60
15796bebc
hex52e2fb8

86912952 has 128 divisors (see below), whose sum is σ = 263208960. Its totient is φ = 23379840.

The previous prime is 86912941. The next prime is 86912953. The reversal of 86912952 is 25921968.

It is a super-2 number, since 2×869129522 = 15107722450708608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86912953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320577 + ... + 320847.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 286912952 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 86912952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131604480).

86912952 is an abundant number, since it is smaller than the sum of its proper divisors (176296008).

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

86912952 is a wasteful number, since it uses less digits than its factorization.

86912952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 389 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 86912952 is about 9322.7116226986. The cubic root of 86912952 is about 442.9569297758.

The spelling of 86912952 in words is "eighty-six million, nine hundred twelve thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 23 24 28 42 46 56 69 83 84 92 138 161 166 168 184 249 271 276 322 332 483 498 542 552 581 644 664 813 966 996 1084 1162 1288 1626 1743 1897 1909 1932 1992 2168 2324 3252 3486 3794 3818 3864 4648 5691 5727 6233 6504 6972 7588 7636 11382 11454 12466 13363 13944 15176 15272 18699 22493 22764 22908 24932 26726 37398 40089 43631 44986 45528 45816 49864 53452 67479 74796 80178 87262 89972 106904 130893 134958 149592 157451 160356 174524 179944 261786 269916 314902 320712 349048 472353 517339 523572 539832 629804 944706 1034678 1047144 1259608 1552017 1889412 2069356 3104034 3621373 3778824 4138712 6208068 7242746 10864119 12416136 14485492 21728238 28970984 43456476 86912952