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36031072 = 2572112089
BaseRepresentation
bin1000100101110…
…0101001100000
32111210120100011
42021130221200
533210443242
63324134304
7615154600
oct211345140
974716304
1036031072
111937a750
1210097394
13760717c
144adcc00
15326ad17
hex225ca60

36031072 has 72 divisors (see below), whose sum is σ = 90062280. Its totient is φ = 14031360.

The previous prime is 36031057. The next prime is 36031097. The reversal of 36031072 is 27013063.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16204 + ... + 18292.

It is an arithmetic number, because the mean of its divisors is an integer number (1250865).

Almost surely, 236031072 is an apocalyptic number.

36031072 is a gapful number since it is divisible by the number (32) 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 36031072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45031140).

36031072 is an abundant number, since it is smaller than the sum of its proper divisors (54031208).

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

36031072 is a wasteful number, since it uses less digits than its factorization.

36031072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 36031072 is about 6002.5887748537. The cubic root of 36031072 is about 330.2876952413.

Subtracting from 36031072 its reverse (27013063), we obtain a square (9018009 = 30032).

The spelling of 36031072 in words is "thirty-six million, thirty-one thousand, seventy-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 49 56 77 88 98 112 154 176 196 224 308 352 392 539 616 784 1078 1232 1568 2089 2156 2464 4178 4312 8356 8624 14623 16712 17248 22979 29246 33424 45958 58492 66848 91916 102361 116984 160853 183832 204722 233968 321706 367664 409444 467936 643412 735328 818888 1125971 1286824 1637776 2251942 2573648 3275552 4503884 5147296 9007768 18015536 36031072