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2525290140 = 2235103408623
BaseRepresentation
bin1001011010000100…
…1101111010011100
320111222210000211110
42112201031322130
520132433241030
61054325422020
7116402416632
oct22641157234
96458700743
102525290140
11108650794a
125a586a910
13313245729
1419d555352
15eba741b0
hex9684de9c

2525290140 has 48 divisors (see below), whose sum is σ = 7139478528. Its totient is φ = 666871104.

The previous prime is 2525290127. The next prime is 2525290147. The reversal of 2525290140 is 410925252.

2525290140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2525290098 and 2525290107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525290147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198132 + ... + 210491.

It is an arithmetic number, because the mean of its divisors is an integer number (148739136).

Almost surely, 22525290140 is an apocalyptic number.

2525290140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525290140 is an abundant number, since it is smaller than the sum of its proper divisors (4614188388).

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

2525290140 is a wasteful number, since it uses less digits than its factorization.

2525290140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408738 (or 408736 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2525290140 is about 50252.2650235788. The cubic root of 2525290140 is about 1361.7699957260.

The spelling of 2525290140 in words is "two billion, five hundred twenty-five million, two hundred ninety thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 103 206 309 412 515 618 1030 1236 1545 2060 3090 6180 408623 817246 1225869 1634492 2043115 2451738 4086230 4903476 6129345 8172460 12258690 24517380 42088169 84176338 126264507 168352676 210440845 252529014 420881690 505058028 631322535 841763380 1262645070 2525290140