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33230013020 = 2253744905423
BaseRepresentation
bin11110111100101010…
…011100001001011100
310011202212010120020222
4132330222130021130
51021023340404040
623133214300512
72254320310301
oct367452341134
9104685116228
1033230013020
1113102526686
1265347b7738
1331976117c9
1418734070a8
15ce74a4bb5
hex7bca9c25c

33230013020 has 24 divisors (see below), whose sum is σ = 71669056704. Its totient is φ = 12932761536.

The previous prime is 33230013017. The next prime is 33230013023. The reversal of 33230013020 is 2031003233.

It is an interprime number because it is at equal distance from previous prime (33230013017) and next prime (33230013023).

It is a super-2 number, since 2×332300130202 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33230013020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33230013023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22451972 + ... + 22453451.

It is an arithmetic number, because the mean of its divisors is an integer number (2986210696).

Almost surely, 233230013020 is an apocalyptic number.

It is an amenable number.

33230013020 is an abundant number, since it is smaller than the sum of its proper divisors (38439043684).

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

33230013020 is a wasteful number, since it uses less digits than its factorization.

33230013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44905469 (or 44905467 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 33230013020 its reverse (2031003233), we get a palindrome (35261016253).

The spelling of 33230013020 in words is "thirty-three billion, two hundred thirty million, thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 44905423 89810846 179621692 224527115 449054230 898108460 1661500651 3323001302 6646002604 8307503255 16615006510 33230013020