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8072213830 = 25807221383
BaseRepresentation
bin1111000010010010…
…00011010101000110
3202211120021221122121
413201021003111012
5113012441320310
63412555320154
7404015454052
oct74111032506
922746257577
108072213830
1134726107aa
12169345005a
139b84a84b5
14568104c62
15323a120da
hex1e1243546

8072213830 has 8 divisors (see below), whose sum is σ = 14529984912. Its totient is φ = 3228885528.

The previous prime is 8072213777. The next prime is 8072213839. The reversal of 8072213830 is 383122708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×80722138302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072213839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403610682 + ... + 403610701.

It is an arithmetic number, because the mean of its divisors is an integer number (1816248114).

Almost surely, 28072213830 is an apocalyptic number.

8072213830 is a deficient number, since it is larger than the sum of its proper divisors (6457771082).

8072213830 is a wasteful number, since it uses less digits than its factorization.

8072213830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807221390.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8072213830 is about 89845.4997760044. The cubic root of 8072213830 is about 2005.9998023543. Note that the first 3 decimals are identical.

The spelling of 8072213830 in words is "eight billion, seventy-two million, two hundred thirteen thousand, eight hundred thirty".

Divisors: 1 2 5 10 807221383 1614442766 4036106915 8072213830