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2125415131640 = 235311714044461
BaseRepresentation
bin11110111011011100100…
…111010010100111111000
321112012001211112122120122
4132323130213102213320
5234310322233203030
64304222514312412
7306361524351203
oct36733447224770
97465054478518
102125415131640
1174a424483509
122a3b05288708
1312556c5b9138
1474c2907a93a
153a44858b8e5
hex1eedc9d29f8

2125415131640 has 32 divisors (see below), whose sum is σ = 4936448050560. Its totient is φ = 822741340800.

The previous prime is 2125415131621. The next prime is 2125415131663. The reversal of 2125415131640 is 461315145212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125415131640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857020991 + ... + 857023470.

It is an arithmetic number, because the mean of its divisors is an integer number (154264001580).

Almost surely, 22125415131640 is an apocalyptic number.

2125415131640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125415131640 is an abundant number, since it is smaller than the sum of its proper divisors (2811032918920).

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

2125415131640 is a wasteful number, since it uses less digits than its factorization.

2125415131640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714044503 (or 1714044499 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 2125415131640 in words is "two trillion, one hundred twenty-five billion, four hundred fifteen million, one hundred thirty-one thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 1714044461 3428088922 6856177844 8570222305 13712355688 17140444610 34280889220 53135378291 68561778440 106270756582 212541513164 265676891455 425083026328 531353782910 1062707565820 2125415131640