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90424748 = 22711911667
BaseRepresentation
bin1010110001111…
…00010110101100
320022011001102202
411120330112230
5141122042443
612550041032
72145412001
oct530742654
9208131382
1090424748
11470514a7
1226349178
131597038b
14c01b8a8
157e127b8
hex563c5ac

90424748 has 24 divisors (see below), whose sum is σ = 161409024. Its totient is φ = 44315600.

The previous prime is 90424729. The next prime is 90424759. The reversal of 90424748 is 84742409.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53411 + ... + 55077.

It is an arithmetic number, because the mean of its divisors is an integer number (6725376).

Almost surely, 290424748 is an apocalyptic number.

It is an amenable number.

90424748 is a deficient number, since it is larger than the sum of its proper divisors (70984276).

90424748 is a wasteful number, since it uses less digits than its factorization.

90424748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 90424748 is about 9509.1928153761. The cubic root of 90424748 is about 448.8443565473.

It can be divided in two parts, 904 and 24748, that added together give a palindrome (25652).

The spelling of 90424748 in words is "ninety million, four hundred twenty-four thousand, seven hundred forty-eight".

Divisors: 1 2 4 71 142 191 284 382 764 1667 3334 6668 13561 27122 54244 118357 236714 318397 473428 636794 1273588 22606187 45212374 90424748