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3129930030 = 235104331001
BaseRepresentation
bin1011101010001110…
…1111000100101110
322002010111220211110
42322203233010232
522402230230110
61234325132450
7140363652303
oct27243570456
98063456743
103129930030
111366844837
1273425a126
133ab5a7206
142199890aa
15134baba20
hexba8ef12e

3129930030 has 16 divisors (see below), whose sum is σ = 7511832144. Its totient is φ = 834648000.

The previous prime is 3129930029. The next prime is 3129930031. The reversal of 3129930030 is 300399213.

It is an interprime number because it is at equal distance from previous prime (3129930029) and next prime (3129930031).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 104331001 = 3129930030 / (3 + 1 + 2 + 9 + 9 + 3 + 0 + 0 + 3 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 3129930030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129930031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52165471 + ... + 52165530.

It is an arithmetic number, because the mean of its divisors is an integer number (469489509).

Almost surely, 23129930030 is an apocalyptic number.

3129930030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3129930030 is an abundant number, since it is smaller than the sum of its proper divisors (4381902114).

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

3129930030 is a wasteful number, since it uses less digits than its factorization.

3129930030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104331011.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 3129930030 is about 55945.7775886617. Note that the first 3 decimals coincide. The cubic root of 3129930030 is about 1462.7772915668. Note that the first 3 decimals are identical.

The spelling of 3129930030 in words is "three billion, one hundred twenty-nine million, nine hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 104331001 208662002 312993003 521655005 625986006 1043310010 1564965015 3129930030