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1830042252 = 223250834507
BaseRepresentation
bin110110100010100…
…0011101010001100
311201112112210000200
41231011003222030
512221442323002
6501332053500
763231050103
oct15505035214
94645483020
101830042252
1185a013915
12430a64290
132321ab34c
1413509703a
15aa9deb1c
hex6d143a8c

1830042252 has 18 divisors (see below), whose sum is σ = 4625940228. Its totient is φ = 610014072.

The previous prime is 1830042229. The next prime is 1830042271. The reversal of 1830042252 is 2522400381.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25417218 + ... + 25417289.

Almost surely, 21830042252 is an apocalyptic number.

1830042252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1830042252 is an abundant number, since it is smaller than the sum of its proper divisors (2795897976).

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

1830042252 is a wasteful number, since it uses less digits than its factorization.

1830042252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50834517 (or 50834512 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1830042252 is about 42778.9931157806. The cubic root of 1830042252 is about 1223.1706142831.

The spelling of 1830042252 in words is "one billion, eight hundred thirty million, forty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 50834507 101669014 152503521 203338028 305007042 457510563 610014084 915021126 1830042252