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1388125801328 = 2477322325761
BaseRepresentation
bin10100001100110010101…
…111101100101101110000
311220200222212121000002212
4110030302233230231300
5140220340201120303
62541410213231252
7202201023426020
oct24146257545560
94820885530085
101388125801328
11495778910062
121a5040632528
13a0b9084aa06
144b2855b7a80
152619598dad8
hex14332becb70

1388125801328 has 60 divisors (see below), whose sum is σ = 3116390837328. Its totient is φ = 586761338880.

The previous prime is 1388125801327. The next prime is 1388125801369. The reversal of 1388125801328 is 8231085218831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388125801327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566033 + ... + 1759728.

Almost surely, 21388125801328 is an apocalyptic number.

It is an amenable number.

1388125801328 is an abundant number, since it is smaller than the sum of its proper divisors (1728265036000).

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

1388125801328 is an equidigital number, since it uses as much as digits as its factorization.

1388125801328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325922 (or 2325843 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 50.

The spelling of 1388125801328 in words is "one trillion, three hundred eighty-eight billion, one hundred twenty-five million, eight hundred one thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 73 112 146 292 511 584 1022 1168 2044 4088 5329 8176 10658 21316 37303 42632 74606 85264 149212 298424 596848 2325761 4651522 9303044 16280327 18606088 32560654 37212176 65121308 130242616 169780553 260485232 339561106 679122212 1188463871 1358244424 2376927742 2716488848 4753855484 9507710968 12393980369 19015421936 24787960738 49575921476 86757862583 99151842952 173515725166 198303685904 347031450332 694062900664 1388125801328