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30977408016 = 243448892
BaseRepresentation
bin11100110110011001…
…011011110000010000
32221221212110101010000
4130312121123300100
51001420204024031
622121505210000
72144435423622
oct346631336020
987855411100
1030977408016
1112156a37155
126006330900
132bc8a22139
1416dc194c12
15c148463e6
hex73665bc10

30977408016 has 75 divisors (see below), whose sum is σ = 89675948461. Its totient is φ = 10323690624.

The previous prime is 30977408003. The next prime is 30977408023. The reversal of 30977408016 is 61080477903.

The square root of 30977408016 is 176004.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21669017616 + 9308390400 = 147204^2 + 96480^2 .

It is a Duffinian 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 14 ways as a sum of consecutive naturals, for example, 6333700 + ... + 6338588.

Almost surely, 230977408016 is an apocalyptic number.

30977408016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

30977408016 is the 176004-th square number.

It is an amenable number.

30977408016 is an abundant number, since it is smaller than the sum of its proper divisors (58698540445).

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

30977408016 is an frugal number, since it uses more digits than its factorization.

30977408016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 30977408016 in words is "thirty billion, nine hundred seventy-seven million, four hundred eight thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 4889 9778 14667 19556 29334 39112 44001 58668 78224 88002 117336 132003 176004 234672 264006 352008 396009 528012 704016 792018 1056024 1584036 2112048 3168072 6336144 23902321 47804642 71706963 95609284 143413926 191218568 215120889 286827852 382437136 430241778 573655704 645362667 860483556 1147311408 1290725334 1720967112 1936088001 2581450668 3441934224 3872176002 5162901336 7744352004 10325802672 15488704008 30977408016