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87101472 = 2531719532
BaseRepresentation
bin1010011000100…
…01000000100000
320001220012202110
411030101000200
5134244221342
612350515320
72105231103
oct514210040
9201805673
1087101472
1145191697
1225205b40
1315078843
14b7d473a
1579a7c9c
hex5311020

87101472 has 144 divisors (see below), whose sum is σ = 259731360. Its totient is φ = 25399296.

The previous prime is 87101461. The next prime is 87101503. The reversal of 87101472 is 27410178.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1643398 + ... + 1643450.

It is an arithmetic number, because the mean of its divisors is an integer number (1803690).

Almost surely, 287101472 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 87101472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129865680).

87101472 is an abundant number, since it is smaller than the sum of its proper divisors (172629888).

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

87101472 is a wasteful number, since it uses less digits than its factorization.

87101472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 87101472 is about 9332.8169380954. The cubic root of 87101472 is about 443.2769662194.

The spelling of 87101472 in words is "eighty-seven million, one hundred one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 17 19 24 32 34 38 48 51 53 57 68 76 96 102 106 114 136 152 159 204 212 228 272 304 318 323 408 424 456 544 608 636 646 816 848 901 912 969 1007 1272 1292 1632 1696 1802 1824 1938 2014 2544 2584 2703 2809 3021 3604 3876 4028 5088 5168 5406 5618 6042 7208 7752 8056 8427 10336 10812 11236 12084 14416 15504 16112 16854 17119 21624 22472 24168 28832 31008 32224 33708 34238 43248 44944 47753 48336 51357 53371 67416 68476 86496 89888 95506 96672 102714 106742 134832 136952 143259 160113 191012 205428 213484 269664 273904 286518 320226 382024 410856 426968 547808 573036 640452 764048 821712 853936 907307 1146072 1280904 1528096 1643424 1707872 1814614 2292144 2561808 2721921 3629228 4584288 5123616 5443842 7258456 10887684 14516912 21775368 29033824 43550736 87101472