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90010131001 = 74103363967
BaseRepresentation
bin101001111010100000…
…1011001101000111001
322121022221221102020121
41103311001121220321
52433320043143001
6105203341253241
76334351330000
oct1236501315071
9277287842217
1090010131001
113519a41071a
1215540264221
138645c5b65b
1444dc3b7c37
15251c1cd6a1
hex14f5059a39

90010131001 has 20 divisors (see below), whose sum is σ = 106025334272. Its totient is φ = 76402286856.

The previous prime is 90010130983. The next prime is 90010131151. The reversal of 90010131001 is 10013101009.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-90010131001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90010131301) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65320 + ... + 429286.

Almost surely, 290010131001 is an apocalyptic number.

It is an amenable number.

90010131001 is a deficient number, since it is larger than the sum of its proper divisors (16015203271).

90010131001 is an equidigital number, since it uses as much as digits as its factorization.

90010131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364098 (or 364077 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 16.

The spelling of 90010131001 in words is "ninety billion, ten million, one hundred thirty-one thousand, one".

Divisors: 1 7 49 103 343 721 2401 5047 35329 247303 363967 2547769 17834383 37488601 124840681 262420207 873884767 1836941449 12858590143 90010131001