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97880233812 = 2238991648159
BaseRepresentation
bin101101100101000011…
…1011101011101010100
3100100122102221001200220
41123022013131131110
53100424314440222
6112544321034340
710033364155104
oct1331207353524
9310572831626
1097880233812
1138568927419
1216b77a859b0
1392cb5c0a1a
144a4770b204
15282d0bab5c
hex16ca1dd754

97880233812 has 24 divisors (see below), whose sum is σ = 230953363200. Its totient is φ = 32260151616.

The previous prime is 97880233783. The next prime is 97880233813. The reversal of 97880233812 is 21833208879.

It is a super-3 number, since 3×978802338123 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97880233813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45823012 + ... + 45825147.

It is an arithmetic number, because the mean of its divisors is an integer number (9623056800).

Almost surely, 297880233812 is an apocalyptic number.

It is an amenable number.

97880233812 is an abundant number, since it is smaller than the sum of its proper divisors (133073129388).

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

97880233812 is a wasteful number, since it uses less digits than its factorization.

97880233812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91648255 (or 91648253 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 97880233812 in words is "ninety-seven billion, eight hundred eighty million, two hundred thirty-three thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 91648159 183296318 274944477 366592636 549888954 1099777908 8156686151 16313372302 24470058453 32626744604 48940116906 97880233812