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51136113410460 = 223251321853039919
BaseRepresentation
bin10111010000010000011011…
…11000000000000110011100
320201001120020122222100211100
423220020031320000012130
523200303230013113320
6300431334534353100
713525314363160461
oct1350101570000634
9221046218870740
1051136113410460
11153257819a4951
12589a630abb790
13226c1652b9880
14c8b00300b668
155da27acc5790
hex2e820de0019c

51136113410460 has 72 divisors (see below), whose sum is σ = 167044637148480. Its totient is φ = 12587350992768.

The previous prime is 51136113410387. The next prime is 51136113410489. The reversal of 51136113410460 is 6401431163115.

51136113410460 is a `hidden beast` number, since 5 + 1 + 1 + 3 + 61 + 134 + 1 + 0 + 460 = 666.

It is a super-2 number, since 2×511361134104602 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 10926517620 + ... + 10926522299.

It is an arithmetic number, because the mean of its divisors is an integer number (2320064404840).

Almost surely, 251136113410460 is an apocalyptic number.

It is an amenable number.

51136113410460 is an abundant number, since it is smaller than the sum of its proper divisors (115908523738020).

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

51136113410460 is a wasteful number, since it uses less digits than its factorization.

51136113410460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21853039947 (or 21853039942 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 51136113410460 its reverse (6401431163115), we get a palindrome (57537544573575).

The spelling of 51136113410460 in words is "fifty-one trillion, one hundred thirty-six billion, one hundred thirteen million, four hundred ten thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 21853039919 43706079838 65559119757 87412159676 109265199595 131118239514 196677359271 218530399190 262236479028 284089518947 327795598785 393354718542 437060798380 568179037894 655591197570 786709437084 852268556841 983386796355 1136358075788 1311182395140 1420447594735 1704537113682 1966773592710 2556805670523 2840895189470 3409074227364 3933547185420 4261342784205 5113611341046 5681790378940 8522685568410 10227222682092 12784028352615 17045371136820 25568056705230 51136113410460