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1530112540 = 2251117409121
BaseRepresentation
bin101101100110011…
…1010101000011100
310221122011202210211
41123030322220130
511113202100130
6411455342204
752626512335
oct13314725034
93848152724
101530112540
11715788220
12368521964
131b5006548
1410730128c
158e4e6a2a
hex5b33aa1c

1530112540 has 48 divisors (see below), whose sum is σ = 3711554784. Its totient is φ = 523673600.

The previous prime is 1530112537. The next prime is 1530112583. The reversal of 1530112540 is 452110351.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200821 + ... + 208300.

It is an arithmetic number, because the mean of its divisors is an integer number (77324058).

Almost surely, 21530112540 is an apocalyptic number.

1530112540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530112540 is an abundant number, since it is smaller than the sum of its proper divisors (2181442244).

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

1530112540 is a wasteful number, since it uses less digits than its factorization.

1530112540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409158 (or 409156 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1530112540 is about 39116.6529754272. The cubic root of 1530112540 is about 1152.3236043933.

Adding to 1530112540 its reverse (452110351), we get a palindrome (1982222891).

It can be divided in two parts, 153011 and 2540, that added together give a palindrome (155551).

The spelling of 1530112540 in words is "one billion, five hundred thirty million, one hundred twelve thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1870 3740 409121 818242 1636484 2045605 4091210 4500331 6955057 8182420 9000662 13910114 18001324 22501655 27820228 34775285 45003310 69550570 76505627 90006620 139101140 153011254 306022508 382528135 765056270 1530112540