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90441470 = 2574330047
BaseRepresentation
bin1010110010000…
…00011011111110
320022011220101002
411121000123332
5141123111340
612550250302
72145511520
oct531003376
9208156332
1090441470
1147063019
1226356992
1315977b82
14c023a10
157e17715
hex56406fe

90441470 has 32 divisors (see below), whose sum is σ = 190384128. Its totient is φ = 30286368.

The previous prime is 90441457. The next prime is 90441487. The reversal of 90441470 is 7414409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12014 + ... + 18033.

It is an arithmetic number, because the mean of its divisors is an integer number (5949504).

Almost surely, 290441470 is an apocalyptic number.

90441470 is an abundant number, since it is smaller than the sum of its proper divisors (99942658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90441470 is a wasteful number, since it uses less digits than its factorization.

90441470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30104.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 90441470 is about 9510.0720291699. The cubic root of 90441470 is about 448.8720226928.

Adding to 90441470 its reverse (7414409), we get a palindrome (97855879).

The spelling of 90441470 in words is "ninety million, four hundred forty-one thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 43 70 86 215 301 430 602 1505 3010 30047 60094 150235 210329 300470 420658 1051645 1292021 2103290 2584042 6460105 9044147 12920210 18088294 45220735 90441470