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98945131 = 671476793
BaseRepresentation
bin1011110010111…
…00100001101011
320220011221012111
411321130201223
5200312221011
613452423151
72311006525
oct571344153
9226157174
1098945131
1150940a3a
1229177ab7
131766461c
14d1d8a15
158a47121
hex5e5c86b

98945131 has 4 divisors (see below), whose sum is σ = 100421992. Its totient is φ = 97468272.

The previous prime is 98945123. The next prime is 98945167. The reversal of 98945131 is 13154989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13154989 = 31142299.

It is a cyclic number.

It is not a de Polignac number, because 98945131 - 23 = 98945123 is a prime.

It is a super-2 number, since 2×989451312 = 19580277897214322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98945531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738330 + ... + 738463.

It is an arithmetic number, because the mean of its divisors is an integer number (25105498).

Almost surely, 298945131 is an apocalyptic number.

98945131 is a deficient number, since it is larger than the sum of its proper divisors (1476861).

98945131 is a wasteful number, since it uses less digits than its factorization.

98945131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476860.

The product of its digits is 38880, while the sum is 40.

The square root of 98945131 is about 9947.1167179238. The cubic root of 98945131 is about 462.5210212992.

The spelling of 98945131 in words is "ninety-eight million, nine hundred forty-five thousand, one hundred thirty-one".

Divisors: 1 67 1476793 98945131