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78998092 = 22672811049
BaseRepresentation
bin1001011010101…
…10101001001100
312111122112000021
410231112221030
5130210414332
611501111524
71646321065
oct455265114
9174575007
1078998092
1140657488
12225585a4
131349c344
14a6c556c
156e06c97
hex4b56a4c

78998092 has 24 divisors (see below), whose sum is σ = 140943600. Its totient is φ = 38734080.

The previous prime is 78998081. The next prime is 78998107. The reversal of 78998092 is 29089987.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74784 + ... + 75832.

It is an arithmetic number, because the mean of its divisors is an integer number (5872650).

Almost surely, 278998092 is an apocalyptic number.

It is an amenable number.

78998092 is a deficient number, since it is larger than the sum of its proper divisors (61945508).

78998092 is a wasteful number, since it uses less digits than its factorization.

78998092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 78998092 is about 8888.0870832818. The cubic root of 78998092 is about 429.0805882767.

The spelling of 78998092 in words is "seventy-eight million, nine hundred ninety-eight thousand, ninety-two".

Divisors: 1 2 4 67 134 268 281 562 1049 1124 2098 4196 18827 37654 70283 75308 140566 281132 294769 589538 1179076 19749523 39499046 78998092