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54072136415 = 51131233136111
BaseRepresentation
bin110010010110111100…
…110101001011011111
312011120101021010122002
4302112330311023133
51341214431331130
640501305312515
73622646401403
oct622674651337
9164511233562
1054072136415
1120a28347450
12a59079573b
1351395ca4bb
14288d4a1103
151617118b45
hexc96f352df

54072136415 has 32 divisors (see below), whose sum is σ = 73382879232. Its totient is φ = 37893024000.

The previous prime is 54072136403. The next prime is 54072136421. The reversal of 54072136415 is 51463127045.

It is not a de Polignac number, because 54072136415 - 218 = 54071874271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329210 + ... + 465320.

It is an arithmetic number, because the mean of its divisors is an integer number (2293214976).

Almost surely, 254072136415 is an apocalyptic number.

54072136415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54072136415 is a deficient number, since it is larger than the sum of its proper divisors (19310742817).

54072136415 is a wasteful number, since it uses less digits than its factorization.

54072136415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136391.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 54072136415 in words is "fifty-four billion, seventy-two million, one hundred thirty-six thousand, four hundred fifteen".

Divisors: 1 5 11 31 55 155 233 341 1165 1705 2563 7223 12815 36115 79453 136111 397265 680555 1497221 4219441 7486105 21097205 31713863 46413851 158569315 232069255 348852493 983129753 1744262465 4915648765 10814427283 54072136415