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30550941780 = 22354871045549
BaseRepresentation
bin11100011100111110…
…100110000001010100
32220212010222122102020
4130130332212001110
51000032020114110
622011312413140
72131036502052
oct343476460124
986763878366
1030550941780
1111a58234817
125b075471b0
132b5b575158
14169b6a11d2
15bdc1a5d70
hex71cfa6054

30550941780 has 48 divisors (see below), whose sum is σ = 85718371200. Its totient is φ = 8130181248.

The previous prime is 30550941709. The next prime is 30550941793. The reversal of 30550941780 is 8714905503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493555 + ... + 551994.

It is an arithmetic number, because the mean of its divisors is an integer number (1785799400).

Almost surely, 230550941780 is an apocalyptic number.

30550941780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30550941780 is an abundant number, since it is smaller than the sum of its proper divisors (55167429420).

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

30550941780 is a wasteful number, since it uses less digits than its factorization.

30550941780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046048 (or 1046046 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 30550941780 in words is "thirty billion, five hundred fifty million, nine hundred forty-one thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 487 974 1461 1948 2435 2922 4870 5844 7305 9740 14610 29220 1045549 2091098 3136647 4182196 5227745 6273294 10455490 12546588 15683235 20910980 31366470 62732940 509182363 1018364726 1527547089 2036729452 2545911815 3055094178 5091823630 6110188356 7637735445 10183647260 15275470890 30550941780