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80474251 = 1113273593
BaseRepresentation
bin1001100101111…
…11000010001011
312121102111220211
410302333002023
5131100134001
611552501551
71665006544
oct462770213
9177374824
1080474251
1141475550
1222b4a8b7
1313898200
14a98b4cb
1570e9351
hex4cbf08b

80474251 has 24 divisors (see below), whose sum is σ = 96527376. Its totient is φ = 66493440.

The previous prime is 80474231. The next prime is 80474269. The reversal of 80474251 is 15247408.

It is not a de Polignac number, because 80474251 - 221 = 78377099 is a prime.

It is a super-2 number, since 2×804742512 = 12952210148022002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80474201) 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, 135411 + ... + 136003.

It is an arithmetic number, because the mean of its divisors is an integer number (4021974).

Almost surely, 280474251 is an apocalyptic number.

80474251 is a deficient number, since it is larger than the sum of its proper divisors (16053125).

80474251 is a wasteful number, since it uses less digits than its factorization.

80474251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 80474251 is about 8970.7441720294. The cubic root of 80474251 is about 431.7367133554.

The spelling of 80474251 in words is "eighty million, four hundred seventy-four thousand, two hundred fifty-one".

Divisors: 1 11 13 73 143 169 593 803 949 1859 6523 7709 10439 12337 43289 84799 100217 135707 476179 562757 1102387 6190327 7315841 80474251