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90077461 = 1915593041
BaseRepresentation
bin1010101111001…
…11100100010101
320021111102001021
411113213210111
5141024434321
612534401141
72142434335
oct527474425
9207442037
1090077461
1146934591
12262001b1
131587b296
14bd6b0c5
157d94941
hex55e7915

90077461 has 8 divisors (see below), whose sum is σ = 94910400. Its totient is φ = 85253760.

The previous prime is 90077447. The next prime is 90077473. The reversal of 90077461 is 16477009.

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

It is not a de Polignac number, because 90077461 - 211 = 90075413 is a prime.

It is a super-2 number, since 2×900774612 = 16227897960413042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90077261) 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, 28101 + ... + 31141.

It is an arithmetic number, because the mean of its divisors is an integer number (11863800).

Almost surely, 290077461 is an apocalyptic number.

It is an amenable number.

90077461 is a deficient number, since it is larger than the sum of its proper divisors (4832939).

90077461 is a wasteful number, since it uses less digits than its factorization.

90077461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 90077461 is about 9490.9146556062. The cubic root of 90077461 is about 448.2690059707.

The spelling of 90077461 in words is "ninety million, seventy-seven thousand, four hundred sixty-one".

Divisors: 1 19 1559 3041 29621 57779 4740919 90077461