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98190505131 = 32371163122963
BaseRepresentation
bin101101101110010011…
…1000011010010101011
3100101110001202110221020
41123130213003102223
53102043232131011
6113035203143523
710044152344155
oct1333447032253
9311401673836
1098190505131
1138707a868a4
1217043974ba3
13934a976a14
144a769d5ad5
15284a458006
hex16dc9c34ab

98190505131 has 32 divisors (see below), whose sum is σ = 139388055552. Its totient is φ = 61353119520.

The previous prime is 98190505121. The next prime is 98190505151. The reversal of 98190505131 is 13150509189.

It is a de Polignac number, because none of the positive numbers 2k-98190505131 is a prime.

It is a super-2 number, since 2×981905051312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98190505121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737056 + ... + 860018.

It is an arithmetic number, because the mean of its divisors is an integer number (4355876736).

Almost surely, 298190505131 is an apocalyptic number.

98190505131 is a deficient number, since it is larger than the sum of its proper divisors (41197550421).

98190505131 is a wasteful number, since it uses less digits than its factorization.

98190505131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123223.

The product of its (nonzero) digits is 48600, while the sum is 42.

The spelling of 98190505131 in words is "ninety-eight billion, one hundred ninety million, five hundred five thousand, one hundred thirty-one".

Divisors: 1 3 23 69 71 163 213 489 1633 3749 4899 11247 11573 34719 122963 266179 368889 798537 2828149 8484447 8730373 20042969 26191119 60128907 200798579 460988287 602395737 1382964861 1423050799 4269152397 32730168377 98190505131