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98910681 = 3211156257
BaseRepresentation
bin1011110010101…
…00000111011001
320220010011221120
411321110013121
5200310120211
613451555453
72310504222
oct571240731
9226104846
1098910681
1150918071
122915bb89
1317651a3c
14d1ca249
158a3bd06
hex5e541d9

98910681 has 8 divisors (see below), whose sum is σ = 132506784. Its totient is φ = 65627520.

The previous prime is 98910671. The next prime is 98910697. The reversal of 98910681 is 18601989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98910681 - 29 = 98910169 is a prime.

It is a super-2 number, since 2×989106812 = 19566645631767522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98910671) 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, 77496 + ... + 78761.

It is an arithmetic number, because the mean of its divisors is an integer number (16563348).

Almost surely, 298910681 is an apocalyptic number.

It is an amenable number.

98910681 is a deficient number, since it is larger than the sum of its proper divisors (33596103).

98910681 is a wasteful number, since it uses less digits than its factorization.

98910681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156471.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 98910681 is about 9945.3849095950. The cubic root of 98910681 is about 462.4673359936.

The spelling of 98910681 in words is "ninety-eight million, nine hundred ten thousand, six hundred eighty-one".

Divisors: 1 3 211 633 156257 468771 32970227 98910681