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1401041580 = 223571328883
BaseRepresentation
bin101001110000010…
…0011001010101100
310121122022021201220
41103200203022230
510332131312310
6351005103340
746501441221
oct12340431254
93548267656
101401041580
11659940304
12331257b50
131943548b3
14d4103948
1582eed670
hex538232ac

1401041580 has 48 divisors (see below), whose sum is σ = 3978180864. Its totient is φ = 368347840.

The previous prime is 1401041567. The next prime is 1401041581. The reversal of 1401041580 is 851401041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401041580.

It is not an unprimeable number, because it can be changed into a prime (1401041581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160182 + ... + 168701.

It is an arithmetic number, because the mean of its divisors is an integer number (82878768).

Almost surely, 21401041580 is an apocalyptic number.

1401041580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401041580 is an abundant number, since it is smaller than the sum of its proper divisors (2577139284).

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

1401041580 is a wasteful number, since it uses less digits than its factorization.

1401041580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328966 (or 328964 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1401041580 is about 37430.4899780914. The cubic root of 1401041580 is about 1118.9663028392.

The spelling of 1401041580 in words is "one billion, four hundred one million, forty-one thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 71 142 213 284 355 426 710 852 1065 1420 2130 4260 328883 657766 986649 1315532 1644415 1973298 3288830 3946596 4933245 6577660 9866490 19732980 23350693 46701386 70052079 93402772 116753465 140104158 233506930 280208316 350260395 467013860 700520790 1401041580