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529493490 = 233515712491
BaseRepresentation
bin11111100011110…
…110110111110010
31100220100001112000
4133203312313302
52041022242430
6124312514430
716056422541
oct3743666762
91326301460
10529493490
11251981329
121293aba16
1385910676
1450472158
1531741e60
hex1f8f6df2

529493490 has 64 divisors (see below), whose sum is σ = 1421089920. Its totient is φ = 140287680.

The previous prime is 529493483. The next prime is 529493507. The reversal of 529493490 is 94394925.

It is a happy number.

529493490 is a `hidden beast` number, since 529 + 4 + 9 + 34 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36145 + ... + 48635.

It is an arithmetic number, because the mean of its divisors is an integer number (22204530).

Almost surely, 2529493490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 529493490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710544960).

529493490 is an abundant number, since it is smaller than the sum of its proper divisors (891596430).

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

529493490 is a wasteful number, since it uses less digits than its factorization.

529493490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664 (or 12658 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 529493490 is about 23010.7255426681. The cubic root of 529493490 is about 809.0093513220.

The spelling of 529493490 in words is "five hundred twenty-nine million, four hundred ninety-three thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 157 270 314 471 785 942 1413 1570 2355 2826 4239 4710 7065 8478 12491 14130 21195 24982 37473 42390 62455 74946 112419 124910 187365 224838 337257 374730 562095 674514 1124190 1686285 1961087 3372570 3922174 5883261 9805435 11766522 17649783 19610870 29416305 35299566 52949349 58832610 88248915 105898698 176497830 264746745 529493490