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2054507140 = 225737396623
BaseRepresentation
bin111101001110101…
…0100101010000100
312022011220202222001
41322131110222010
513201423212030
6535511115044
7101625010510
oct17235245204
95264822861
102054507140
11964796694
12494072a84
132698500ca
14156c07140
15c057ccca
hex7a754a84

2054507140 has 48 divisors (see below), whose sum is σ = 5064095232. Its totient is φ = 685362816.

The previous prime is 2054507071. The next prime is 2054507141. The reversal of 2054507140 is 417054502.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2054507099 and 2054507108.

It is not an unprimeable number, because it can be changed into a prime (2054507141) 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, 193132 + ... + 203491.

It is an arithmetic number, because the mean of its divisors is an integer number (105501984).

Almost surely, 22054507140 is an apocalyptic number.

2054507140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2054507140 is an abundant number, since it is smaller than the sum of its proper divisors (3009588092).

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

2054507140 is a wasteful number, since it uses less digits than its factorization.

2054507140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396676 (or 396674 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 2054507140 is about 45326.6713977543. The cubic root of 2054507140 is about 1271.2643988911.

The spelling of 2054507140 in words is "two billion, fifty-four million, five hundred seven thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 37 70 74 140 148 185 259 370 518 740 1036 1295 2590 5180 396623 793246 1586492 1983115 2776361 3966230 5552722 7932460 11105444 13881805 14675051 27763610 29350102 55527220 58700204 73375255 102725357 146750510 205450714 293501020 410901428 513626785 1027253570 2054507140