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80497700 = 225223311129
BaseRepresentation
bin1001100110001…
…00110000100100
312121110201002022
410303010300210
5131101411300
611553202312
71665135113
oct463046044
9177421068
1080497700
1141491128
1222b60398
13138a5a9a
14a995c7a
157101285
hex4cc4c24

80497700 has 72 divisors (see below), whose sum is σ = 188321280. Its totient is φ = 29779200.

The previous prime is 80497679. The next prime is 80497709. The reversal of 80497700 is 779408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80497709) 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, 70736 + ... + 71864.

Almost surely, 280497700 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 80497700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94160640).

80497700 is an abundant number, since it is smaller than the sum of its proper divisors (107823580).

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

80497700 is a wasteful number, since it uses less digits than its factorization.

80497700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 80497700 is about 8972.0510475587. The cubic root of 80497700 is about 431.7786431690.

The spelling of 80497700 in words is "eighty million, four hundred ninety-seven thousand, seven hundred".

Divisors: 1 2 4 5 10 20 23 25 31 46 50 62 92 100 115 124 155 230 310 460 575 620 713 775 1129 1150 1426 1550 2258 2300 2852 3100 3565 4516 5645 7130 11290 14260 17825 22580 25967 28225 34999 35650 51934 56450 69998 71300 103868 112900 129835 139996 174995 259670 349990 519340 649175 699980 804977 874975 1298350 1609954 1749950 2596700 3219908 3499900 4024885 8049770 16099540 20124425 40248850 80497700