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13768587515216 = 242361760639611
BaseRepresentation
bin1100100001011011111111…
…0001001001010101010000
31210202021010112111201000202
43020112333301021111100
53301041031400441331
645141111330234332
72620514301603212
oct310267761112520
953667115451022
1013768587515216
114429252784766
1216645401259a8
1378b4aba3c691
143585905005b2
1518d244d40ecb
hexc85bfc49550

13768587515216 has 40 divisors (see below), whose sum is σ = 27881608480704. Its totient is φ = 6574303957760.

The previous prime is 13768587515213. The next prime is 13768587515261. The reversal of 13768587515216 is 61251578586731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13768587515213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30092750 + ... + 30546861.

Almost surely, 213768587515216 is an apocalyptic number.

13768587515216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13768587515216 is an abundant number, since it is smaller than the sum of its proper divisors (14113020965488).

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

13768587515216 is a wasteful number, since it uses less digits than its factorization.

13768587515216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60640259 (or 60640253 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 65.

The spelling of 13768587515216 in words is "thirteen trillion, seven hundred sixty-eight billion, five hundred eighty-seven million, five hundred fifteen thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 23 46 92 184 368 617 1234 2468 4936 9872 14191 28382 56764 113528 227056 60639611 121279222 242558444 485116888 970233776 1394711053 2789422106 5578844212 11157688424 22315376848 37414639987 74829279974 149658559948 299317119896 598634239792 860536719701 1721073439402 3442146878804 6884293757608 13768587515216