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285503130454 = 2536138395237
BaseRepresentation
bin1000010011110010101…
…00000000101101010110
31000021221012111202021211
410021321110000231112
514134202300133304
6335054110532034
726425014365503
oct4117124005526
91007835452254
10285503130454
1110009908a683
12473ba50701a
1320bcc5c27a9
14db65a8a4aa
15765eb30204
hex4279500b56

285503130454 has 32 divisors (see below), whose sum is σ = 437651242560. Its totient is φ = 139636328832.

The previous prime is 285503130449. The next prime is 285503130463. The reversal of 285503130454 is 454031305582.

It is a super-2 number, since 2×2855031304542 (a number of 24 digits) contains 22 as substring.

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, 54513924 + ... + 54519160.

It is an arithmetic number, because the mean of its divisors is an integer number (13676601330).

Almost surely, 2285503130454 is an apocalyptic number.

285503130454 is a deficient number, since it is larger than the sum of its proper divisors (152148112106).

285503130454 is a wasteful number, since it uses less digits than its factorization.

285503130454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 285503130454 in words is "two hundred eighty-five billion, five hundred three million, one hundred thirty thousand, four hundred fifty-four".

Divisors: 1 2 53 106 613 839 1226 1678 5237 10474 32489 44467 64978 88934 277561 514307 555122 1028614 3210281 4393843 6420562 8787686 27258271 54516542 170144893 232873679 340289786 465747358 2693425759 5386851518 142751565227 285503130454