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490766290 = 25767269389
BaseRepresentation
bin11101010000000…
…111111111010010
31021012110111210021
4131100013333102
52001114010130
6120410454054
715106305340
oct3520077722
91235414707
10490766290
1123202aa83
1211843432a
137a8a1271
1449270990
152d14237a
hex1d407fd2

490766290 has 64 divisors (see below), whose sum is σ = 1031097600. Its totient is φ = 164710656.

The previous prime is 490766281. The next prime is 490766293. The reversal of 490766290 is 92667094.

It is not an unprimeable number, because it can be changed into a prime (490766293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261416 + ... + 1261804.

It is an arithmetic number, because the mean of its divisors is an integer number (16110900).

Almost surely, 2490766290 is an apocalyptic number.

490766290 is an abundant number, since it is smaller than the sum of its proper divisors (540331310).

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

490766290 is a wasteful number, since it uses less digits than its factorization.

490766290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 490766290 is about 22153.2455861438. The cubic root of 490766290 is about 788.7842701164.

The spelling of 490766290 in words is "four hundred ninety million, seven hundred sixty-six thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 67 70 134 269 335 389 469 538 670 778 938 1345 1883 1945 2345 2690 2723 3766 3890 4690 5446 9415 13615 18023 18830 26063 27230 36046 52126 90115 104641 126161 130315 180230 182441 209282 252322 260630 364882 523205 630805 732487 912205 1046410 1261610 1464974 1824410 3662435 7010947 7324870 14021894 35054735 49076629 70109470 98153258 245383145 490766290