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89481270 = 23523413163
BaseRepresentation
bin1010101010101…
…10000000110110
320020101010020010
411111112000312
5140401400040
612513521050
72134402224
oct525260066
9206333203
1089481270
114656766a
1225b73186
13156ccac8
14bc53b14
157cc7e80
hex5556036

89481270 has 64 divisors (see below), whose sum is σ = 229630464. Its totient is φ = 22260480.

The previous prime is 89481263. The next prime is 89481277. The reversal of 89481270 is 7218498.

It is an interprime number because it is at equal distance from previous prime (89481263) and next prime (89481277).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89481277) 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, 26709 + ... + 29871.

It is an arithmetic number, because the mean of its divisors is an integer number (3587976).

Almost surely, 289481270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89481270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114815232).

89481270 is an abundant number, since it is smaller than the sum of its proper divisors (140149194).

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

89481270 is a wasteful number, since it uses less digits than its factorization.

89481270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 89481270 is about 9459.4540011567. The cubic root of 89481270 is about 447.2778377711.

The spelling of 89481270 in words is "eighty-nine million, four hundred eighty-one thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 23 30 41 46 69 82 115 123 138 205 230 246 345 410 615 690 943 1230 1886 2829 3163 4715 5658 6326 9430 9489 14145 15815 18978 28290 31630 47445 72749 94890 129683 145498 218247 259366 363745 389049 436494 648415 727490 778098 1091235 1296830 1945245 2182470 2982709 3890490 5965418 8948127 14913545 17896254 29827090 44740635 89481270