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6916945194420 = 2235181636919447
BaseRepresentation
bin110010010100111101000…
…0011111010110110110100
3220111020211210200200220220
41210221322003322312310
51401311400432210140
622413333432454340
71312506231031662
oct144517203726664
926436753620826
106916945194420
112227507268658
12938672b4a3b0
133b235a660761
1419cad38a9c32
15bedd3e62bd0
hex64a7a0fadb4

6916945194420 has 48 divisors (see below), whose sum is σ = 19474449042048. Its totient is φ = 1834328004480.

The previous prime is 6916945194373. The next prime is 6916945194427. The reversal of 6916945194420 is 244915496196.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6916945194427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318448864 + ... + 318470583.

It is an arithmetic number, because the mean of its divisors is an integer number (405717688376).

Almost surely, 26916945194420 is an apocalyptic number.

6916945194420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6916945194420 is an abundant number, since it is smaller than the sum of its proper divisors (12557503847628).

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

6916945194420 is a wasteful number, since it uses less digits than its factorization.

6916945194420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636919640 (or 636919638 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 6916945194420 in words is "six trillion, nine hundred sixteen billion, nine hundred forty-five million, one hundred ninety-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 181 362 543 724 905 1086 1810 2172 2715 3620 5430 10860 636919447 1273838894 1910758341 2547677788 3184597235 3821516682 6369194470 7643033364 9553791705 12738388940 19107583410 38215166820 115282419907 230564839814 345847259721 461129679628 576412099535 691694519442 1152824199070 1383389038884 1729236298605 2305648398140 3458472597210 6916945194420