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1013254420 = 2251923115933
BaseRepresentation
bin111100011001010…
…000100100010100
32121121121122202111
4330121100210110
54033343120140
6244313320404
734052343343
oct7431204424
92547548674
101013254420
1147aa57052
12243406104
13131bcb139
14987dbb5a
155de4d7ea
hex3c650914

1013254420 has 48 divisors (see below), whose sum is σ = 2337229440. Its totient is φ = 367272576.

The previous prime is 1013254393. The next prime is 1013254423. The reversal of 1013254420 is 244523101.

It is a junction number, because it is equal to n+sod(n) for n = 1013254391 and 1013254400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013254423) 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, 49227 + ... + 66706.

It is an arithmetic number, because the mean of its divisors is an integer number (48692280).

Almost surely, 21013254420 is an apocalyptic number.

1013254420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013254420 is an abundant number, since it is smaller than the sum of its proper divisors (1323975020).

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

1013254420 is a wasteful number, since it uses less digits than its factorization.

1013254420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115984 (or 115982 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1013254420 is about 31831.6575126084. The cubic root of 1013254420 is about 1004.3987625176.

Adding to 1013254420 its reverse (244523101), we get a palindrome (1257777521).

The spelling of 1013254420 in words is "one billion, thirteen million, two hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 23 38 46 76 92 95 115 190 230 380 437 460 874 1748 2185 4370 8740 115933 231866 463732 579665 1159330 2202727 2318660 2666459 4405454 5332918 8810908 10665836 11013635 13332295 22027270 26664590 44054540 50662721 53329180 101325442 202650884 253313605 506627210 1013254420