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97986118988 = 223112752311897
BaseRepresentation
bin101101101000001101…
…1011000010101001100
3100100220211011120212002
41123100123120111030
53101133421301423
6113003022331432
710036121161202
oct1332033302514
9310824146762
1097986118988
113861267852a
1216ba7429b78
139317515184
144a577d1072
152837534228
hex16d06d854c

97986118988 has 48 divisors (see below), whose sum is σ = 178757074944. Its totient is φ = 46945422720.

The previous prime is 97986118987. The next prime is 97986118991. The reversal of 97986118988 is 88981168979.

It is not an unprimeable number, because it can be changed into a prime (97986118987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8230256 + ... + 8242152.

It is an arithmetic number, because the mean of its divisors is an integer number (3724105728).

Almost surely, 297986118988 is an apocalyptic number.

It is an amenable number.

97986118988 is a deficient number, since it is larger than the sum of its proper divisors (80770955956).

97986118988 is a wasteful number, since it uses less digits than its factorization.

97986118988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12582 (or 12580 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 74.

The spelling of 97986118988 in words is "ninety-seven billion, nine hundred eighty-six million, one hundred eighteen thousand, nine hundred eighty-eight".

Divisors: 1 2 4 31 62 124 127 254 508 523 1046 2092 3937 7874 11897 15748 16213 23794 32426 47588 64852 66421 132842 265684 368807 737614 1475228 1510919 2059051 3021838 4118102 6043676 6222131 8236204 12444262 24888524 46838489 93676978 187353956 192886061 385772122 771544244 790210637 1580421274 3160842548 24496529747 48993059494 97986118988