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80023572 = 22331734283
BaseRepresentation
bin1001100010100…
…01000000010100
312120120121201000
410301101000110
5130441223242
611535103300
71661121606
oct461210024
9176517630
1080023572
1141197992
1222971b30
131376b035
14a8b1176
15705aa4c
hex4c51014

80023572 has 48 divisors (see below), whose sum is σ = 208716480. Its totient is φ = 26514144.

The previous prime is 80023547. The next prime is 80023583. The reversal of 80023572 is 27532008.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16543 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (4348260).

Almost surely, 280023572 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 80023572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104358240).

80023572 is an abundant number, since it is smaller than the sum of its proper divisors (128692908).

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

80023572 is a wasteful number, since it uses less digits than its factorization.

80023572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469 (or 4461 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 80023572 is about 8945.5895278064. The cubic root of 80023572 is about 430.9292541293.

The spelling of 80023572 in words is "eighty million, twenty-three thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 173 346 519 692 1038 1557 2076 3114 4283 4671 6228 8566 9342 12849 17132 18684 25698 38547 51396 77094 115641 154188 231282 462564 740959 1481918 2222877 2963836 4445754 6668631 8891508 13337262 20005893 26674524 40011786 80023572