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469435990 = 2573709907
BaseRepresentation
bin11011111110110…
…000011001010110
31012201022211010011
4123332300121112
51430133422430
6114325350434
714430066022
oct3376603126
91181284104
10469435990
11220a91231
1211126841a
137634349a
14464bb382
152b32c22a
hex1bfb0656

469435990 has 32 divisors (see below), whose sum is σ = 858713760. Its totient is φ = 184737024.

The previous prime is 469435987. The next prime is 469436029. The reversal of 469435990 is 99534964.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517117 + ... + 518023.

It is an arithmetic number, because the mean of its divisors is an integer number (26834805).

Almost surely, 2469435990 is an apocalyptic number.

469435990 is a deficient number, since it is larger than the sum of its proper divisors (389277770).

469435990 is a wasteful number, since it uses less digits than its factorization.

469435990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 469435990 is about 21666.4715632241. The cubic root of 469435990 is about 777.1868805291.

The spelling of 469435990 in words is "four hundred sixty-nine million, four hundred thirty-five thousand, nine hundred ninety".

Divisors: 1 2 5 10 73 146 365 709 730 907 1418 1814 3545 4535 7090 9070 51757 66211 103514 132422 258785 331055 517570 643063 662110 1286126 3215315 6430630 46943599 93887198 234717995 469435990