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245430450120 = 23355213925631
BaseRepresentation
bin1110010010010011001…
…0110111011111001000
3212110111110200200010010
43210210302313133020
513010120143400440
6304425454151520
723505665255622
oct3444462673710
9773443620103
10245430450120
11950a50aa849
123b6961b25a0
131a1b447371b
14bc4399dc12
1565b6a8d580
hex3924cb77c8

245430450120 has 64 divisors (see below), whose sum is σ = 737704765440. Its totient is φ = 65322483200.

The previous prime is 245430450091. The next prime is 245430450127. The reversal of 245430450120 is 21054034542.

It is a super-2 number, since 2×2454304501202 (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (245430450127) 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, 1900296 + ... + 2025335.

It is an arithmetic number, because the mean of its divisors is an integer number (11526636960).

Almost surely, 2245430450120 is an apocalyptic number.

245430450120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245430450120 is an abundant number, since it is smaller than the sum of its proper divisors (492274315320).

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

245430450120 is a wasteful number, since it uses less digits than its factorization.

245430450120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926166 (or 3926162 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 245430450120 its reverse (21054034542), we get a palindrome (266484484662).

The spelling of 245430450120 in words is "two hundred forty-five billion, four hundred thirty million, four hundred fifty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 521 1042 1563 2084 2605 3126 4168 5210 6252 7815 10420 12504 15630 20840 31260 62520 3925631 7851262 11776893 15702524 19628155 23553786 31405048 39256310 47107572 58884465 78512620 94215144 117768930 157025240 235537860 471075720 2045253751 4090507502 6135761253 8181015004 10226268755 12271522506 16362030008 20452537510 24543045012 30678806265 40905075020 49086090024 61357612530 81810150040 122715225060 245430450120