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61047304747 = 1113795403851
BaseRepresentation
bin111000110110101100…
…111111001000101011
312211120111021101202221
4320312230333020223
52000011102222442
644013355334511
74260544346212
oct706654771053
9184514241687
1061047304747
1123987680680
12b9b8751437
1359ab71aa40
142d519d6079
1518c467a467
hexe36b3f22b

61047304747 has 16 divisors (see below), whose sum is σ = 72627770880. Its totient is φ = 50580036000.

The previous prime is 61047304739. The next prime is 61047304757. The reversal of 61047304747 is 74740374016.

It is not a de Polignac number, because 61047304747 - 23 = 61047304739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61047304757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690629 + ... + 2713222.

It is an arithmetic number, because the mean of its divisors is an integer number (4539235680).

Almost surely, 261047304747 is an apocalyptic number.

61047304747 is a deficient number, since it is larger than the sum of its proper divisors (11580466133).

61047304747 is a wasteful number, since it uses less digits than its factorization.

61047304747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403954.

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 61047304747 in words is "sixty-one billion, forty-seven million, three hundred four thousand, seven hundred forty-seven".

Divisors: 1 11 13 79 143 869 1027 11297 5403851 59442361 70250063 426904229 772750693 4695946519 5549754977 61047304747