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8253387072 = 263272046971
BaseRepresentation
bin1111010111111000…
…01011000101000000
3210022012012111121200
413223330023011000
5113400331341242
63442550421200
7411345426660
oct75374130500
923265174550
108253387072
113555904957
121724061800
13a16ba03b8
145841c61a0
1533489d04c
hex1ebf0b140

8253387072 has 84 divisors (see below), whose sum is σ = 27036406176. Its totient is φ = 2358109440.

The previous prime is 8253387071. The next prime is 8253387101. The reversal of 8253387072 is 2707833528.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8253387071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019454 + ... + 1027517.

Almost surely, 28253387072 is an apocalyptic number.

It is an amenable number.

8253387072 is an abundant number, since it is smaller than the sum of its proper divisors (18783019104).

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

8253387072 is a wasteful number, since it uses less digits than its factorization.

8253387072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046996 (or 2046983 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 8253387072 is about 90848.1539273088. The cubic root of 8253387072 is about 2020.8964971420.

The spelling of 8253387072 in words is "eight billion, two hundred fifty-three million, three hundred eighty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 144 168 192 224 252 288 336 448 504 576 672 1008 1344 2016 4032 2046971 4093942 6140913 8187884 12281826 14328797 16375768 18422739 24563652 28657594 32751536 36845478 42986391 49127304 57315188 65503072 73690956 85972782 98254608 114630376 128959173 131006144 147381912 171945564 196509216 229260752 257918346 294763824 343891128 393018432 458521504 515836692 589527648 687782256 917043008 1031673384 1179055296 1375564512 2063346768 2751129024 4126693536 8253387072