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2163668148628 = 227471938518781
BaseRepresentation
bin11111011111000100101…
…010111110000110010100
321122211210202100020220121
4133133010222332012110
5240422143021224003
64333550405241324
7312214466546110
oct37370452760624
97584722306817
102163668148628
11764674299338
122ab400103244
1312905775202c
1476a17612740
153b4369ddcbd
hex1f7c4abe194

2163668148628 has 48 divisors (see below), whose sum is σ = 4442306287104. Its totient is φ = 902854379520.

The previous prime is 2163668148493. The next prime is 2163668148659. The reversal of 2163668148628 is 8268418663612.

It is a congruent number.

It is an unprimeable number.

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, 4005403 + ... + 4513378.

It is an arithmetic number, because the mean of its divisors is an integer number (92548047648).

Almost surely, 22163668148628 is an apocalyptic number.

2163668148628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2163668148628 is an abundant number, since it is smaller than the sum of its proper divisors (2278638138476).

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

2163668148628 is a wasteful number, since it uses less digits than its factorization.

2163668148628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519032 (or 8519030 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 61.

The spelling of 2163668148628 in words is "two trillion, one hundred sixty-three billion, six hundred sixty-eight million, one hundred forty-eight thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 47 94 188 193 329 386 658 772 1316 1351 2702 5404 9071 18142 36284 63497 126994 253988 8518781 17037562 34075124 59631467 119262934 238525868 400382707 800765414 1601530828 1644124733 2802678949 3288249466 5605357898 6576498932 11210715796 11508873131 23017746262 46035492524 77273862451 154547724902 309095449804 540917037157 1081834074314 2163668148628