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14720218415 = 57420577669
BaseRepresentation
bin11011011010110010…
…01011010100101111
31101222212200120111122
431231121023110233
5220121333442130
610432401211155
71030531535450
oct155531132457
941885616448
1014720218415
1162741a7a71
122a29930abb
1315078a9c16
149d8dd5127
155b249b2e5
hex36d64b52f

14720218415 has 8 divisors (see below), whose sum is σ = 20187728160. Its totient is φ = 10093864032.

The previous prime is 14720218363. The next prime is 14720218493. The reversal of 14720218415 is 51481202741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-14720218415 is a prime.

It is a super-2 number, since 2×147202184152 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 420577669 = 14720218415 / (1 + 4 + 7 + 2 + 0 + 2 + 1 + 8 + 4 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210288800 + ... + 210288869.

It is an arithmetic number, because the mean of its divisors is an integer number (2523466020).

Almost surely, 214720218415 is an apocalyptic number.

14720218415 is a deficient number, since it is larger than the sum of its proper divisors (5467509745).

14720218415 is an equidigital number, since it uses as much as digits as its factorization.

14720218415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420577681.

The product of its (nonzero) digits is 17920, while the sum is 35.

The spelling of 14720218415 in words is "fourteen billion, seven hundred twenty million, two hundred eighteen thousand, four hundred fifteen".

Divisors: 1 5 7 35 420577669 2102888345 2944043683 14720218415