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307441420 = 225111328269
BaseRepresentation
bin10010010100110…
…010111100001100
3210102111122100021
4102110302330030
51112201111140
650301311524
710422131446
oct2224627414
9712448307
10307441420
111485a7320
1286b655a4
134b904c00
142cb8d496
151becdb4a
hex12532f0c

307441420 has 72 divisors (see below), whose sum is σ = 762758640. Its totient is φ = 103184640.

The previous prime is 307441417. The next prime is 307441423. The reversal of 307441420 is 24144703.

It is an interprime number because it is at equal distance from previous prime (307441417) and next prime (307441423).

It is not an unprimeable number, because it can be changed into a prime (307441423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33046 + ... + 41314.

It is an arithmetic number, because the mean of its divisors is an integer number (10593870).

Almost surely, 2307441420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307441420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381379320).

307441420 is an abundant number, since it is smaller than the sum of its proper divisors (455317220).

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

307441420 is a wasteful number, since it uses less digits than its factorization.

307441420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8315 (or 8300 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 307441420 is about 17534.0075282292. The cubic root of 307441420 is about 674.9228407459.

The spelling of 307441420 in words is "three hundred seven million, four hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 169 220 260 286 338 572 676 715 845 1430 1690 1859 2860 3380 3718 7436 8269 9295 16538 18590 33076 37180 41345 82690 90959 107497 165380 181918 214994 363836 429988 454795 537485 909590 1074970 1182467 1397461 1819180 2149940 2364934 2794922 4729868 5589844 5912335 6987305 11824670 13974610 15372071 23649340 27949220 30744142 61488284 76860355 153720710 307441420