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80069958 = 235672459
BaseRepresentation
bin1001100010111…
…00010101000110
312120122222100000
410301130111012
5130444214313
611540102130
71661404053
oct461342506
9176588300
1080069958
1141219821
1222994946
1313786197
14a8c402a
157069673
hex4c5c546

80069958 has 48 divisors (see below), whose sum is σ = 182669760. Its totient is φ = 26280936.

The previous prime is 80069953. The next prime is 80069959. The reversal of 80069958 is 85996008.

It is a super-2 number, since 2×800699582 = 12822396348243528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80069953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31333 + ... + 33791.

It is an arithmetic number, because the mean of its divisors is an integer number (3805620).

Almost surely, 280069958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80069958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91334880).

80069958 is an abundant number, since it is smaller than the sum of its proper divisors (102599802).

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

80069958 is a wasteful number, since it uses less digits than its factorization.

80069958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 80069958 is about 8948.1818264941. The cubic root of 80069958 is about 431.0125013645.

The spelling of 80069958 in words is "eighty million, sixty-nine thousand, nine hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 67 81 134 162 201 243 402 486 603 1206 1809 2459 3618 4918 5427 7377 10854 14754 16281 22131 32562 44262 66393 132786 164753 199179 329506 398358 494259 597537 988518 1195074 1482777 2965554 4448331 8896662 13344993 26689986 40034979 80069958