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537798540 = 223531289139
BaseRepresentation
bin100000000011100…
…010011110001100
31101110221222220110
4200003202132030
52100134023130
6125210520020
716220132526
oct4003423614
91343858813
10537798540
11256634004
12130136010
138755a8b6
14515d4a16
1532332ab0
hex200e278c

537798540 has 48 divisors (see below), whose sum is σ = 1554416640. Its totient is φ = 138786240.

The previous prime is 537798523. The next prime is 537798551. The reversal of 537798540 is 45897735.

It is a super-2 number, since 2×5377985402 = 578454539252263200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 537798540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142710 + ... + 146429.

It is an arithmetic number, because the mean of its divisors is an integer number (32383680).

Almost surely, 2537798540 is an apocalyptic number.

It is an amenable number.

537798540 is an abundant number, since it is smaller than the sum of its proper divisors (1016618100).

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

537798540 is a wasteful number, since it uses less digits than its factorization.

537798540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289182 (or 289180 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The square root of 537798540 is about 23190.4838241896. The cubic root of 537798540 is about 813.2171700234.

The spelling of 537798540 in words is "five hundred thirty-seven million, seven hundred ninety-eight thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 289139 578278 867417 1156556 1445695 1734834 2891390 3469668 4337085 5782780 8674170 8963309 17348340 17926618 26889927 35853236 44816545 53779854 89633090 107559708 134449635 179266180 268899270 537798540