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97869904894 = 2194754798379
BaseRepresentation
bin101101100100110000…
…0000011101111111110
3100100121201111022002101
41123021200003233332
53100414143424034
6112543311415314
710033210315456
oct1331140035776
9310551438071
1097869904894
1138563012123
1216b7452453a
1392c9415538
144a461bcd66
15282c22a514
hex16c9803bfe

97869904894 has 16 divisors (see below), whose sum is σ = 157819334400. Its totient is φ = 45373056984.

The previous prime is 97869904879. The next prime is 97869904897. The reversal of 97869904894 is 49840996879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97869904897) 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, 27397404 + ... + 27400975.

It is an arithmetic number, because the mean of its divisors is an integer number (9863708400).

Almost surely, 297869904894 is an apocalyptic number.

97869904894 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

97869904894 is a deficient number, since it is larger than the sum of its proper divisors (59949429506).

97869904894 is a wasteful number, since it uses less digits than its factorization.

97869904894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54798447.

The product of its (nonzero) digits is 282175488, while the sum is 73.

The spelling of 97869904894 in words is "ninety-seven billion, eight hundred sixty-nine million, nine hundred four thousand, eight hundred ninety-four".

Divisors: 1 2 19 38 47 94 893 1786 54798379 109596758 1041169201 2082338402 2575523813 5151047626 48934952447 97869904894