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72889062190 = 2571259827063
BaseRepresentation
bin100001111100010000…
…1101101001100101110
320222010202122000010221
41003320201231030232
52143234044442230
653252413321554
75160154543330
oct1037041551456
9228122560127
1072889062190
1128a03a8027a
12121624962ba
136b47b589c9
1437565c1450
151d6908e27a
hex10f886d32e

72889062190 has 32 divisors (see below), whose sum is σ = 150062492160. Its totient is φ = 24970655904.

The previous prime is 72889062137. The next prime is 72889062193. The reversal of 72889062190 is 9126098827.

It is a super-2 number, since 2×728890621902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72889062193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325402 + ... + 501661.

It is an arithmetic number, because the mean of its divisors is an integer number (4689452880).

Almost surely, 272889062190 is an apocalyptic number.

72889062190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72889062190 is an abundant number, since it is smaller than the sum of its proper divisors (77173429970).

72889062190 is a wasteful number, since it uses less digits than its factorization.

72889062190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828336.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 72889062190 in words is "seventy-two billion, eight hundred eighty-nine million, sixty-two thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 1259 2518 6295 8813 12590 17626 44065 88130 827063 1654126 4135315 5789441 8270630 11578882 28947205 57894410 1041272317 2082544634 5206361585 7288906219 10412723170 14577812438 36444531095 72889062190