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89215672 = 2373134161
BaseRepresentation
bin1010101000101…
…01001010111000
320012212121220011
411110111022320
5140314400142
612504111304
72132215000
oct524251270
9205777804
1089215672
11463a6067
1225a65534
1315638c50
14bbc5000
157c74417
hex55152b8

89215672 has 128 divisors (see below), whose sum is σ = 218736000. Its totient is φ = 33868800.

The previous prime is 89215667. The next prime is 89215673. The reversal of 89215672 is 27651298.

It is a super-3 number, since 3×892156723 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89215673) 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, 1462522 + ... + 1462582.

It is an arithmetic number, because the mean of its divisors is an integer number (1708875).

Almost surely, 289215672 is an apocalyptic number.

89215672 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89215672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109368000).

89215672 is an abundant number, since it is smaller than the sum of its proper divisors (129520328).

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

89215672 is a wasteful number, since it uses less digits than its factorization.

89215672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 124 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 89215672 is about 9445.4048086887. The cubic root of 89215672 is about 446.8348630194.

The spelling of 89215672 in words is "eighty-nine million, two hundred fifteen thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 26 28 41 49 52 56 61 82 91 98 104 122 164 182 196 244 287 328 343 364 392 427 488 533 574 637 686 728 793 854 1066 1148 1274 1372 1586 1708 2009 2132 2296 2501 2548 2744 2989 3172 3416 3731 4018 4264 4459 5002 5096 5551 5978 6344 7462 8036 8918 10004 11102 11956 14063 14924 16072 17507 17836 20008 20923 22204 23912 26117 28126 29848 32513 35014 35672 38857 41846 44408 52234 56252 65026 70028 77714 83692 104468 112504 122549 130052 140056 155428 167384 182819 208936 227591 245098 260104 271999 310856 365638 455182 490196 543998 731276 857843 910364 980392 1087996 1462552 1593137 1715686 1820728 2175992 3186274 3431372 6372548 6862744 11151959 12745096 22303918 44607836 89215672