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80305532 = 22109184187
BaseRepresentation
bin1001100100101…
…01110101111100
312121002221110222
410302111311330
5131024234112
611545120512
71663404626
oct462256574
9177087428
1080305532
114136a80a
1222a89138
1313839488
14a945c16
1570b4372
hex4c95d7c

80305532 has 12 divisors (see below), whose sum is σ = 141824760. Its totient is φ = 39784176.

The previous prime is 80305523. The next prime is 80305541. The reversal of 80305532 is 23550308.

It is an interprime number because it is at equal distance from previous prime (80305523) and next prime (80305541).

It is a super-3 number, since 3×803055323 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91658 + ... + 92529.

It is an arithmetic number, because the mean of its divisors is an integer number (11818730).

Almost surely, 280305532 is an apocalyptic number.

It is an amenable number.

80305532 is a deficient number, since it is larger than the sum of its proper divisors (61519228).

80305532 is a wasteful number, since it uses less digits than its factorization.

80305532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184300 (or 184298 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 80305532 is about 8961.3353915586. The cubic root of 80305532 is about 431.4347817811.

The spelling of 80305532 in words is "eighty million, three hundred five thousand, five hundred thirty-two".

Divisors: 1 2 4 109 218 436 184187 368374 736748 20076383 40152766 80305532