Search a number
-
+
307938419580 = 2235115318114861
BaseRepresentation
bin1000111101100101000…
…11110110001101111100
31002102211202110112012010
410132302203312031330
520021124213411310
6353244233011220
731151000243631
oct4366243661574
91072752415163
10307938419580
11109661234440
124b81bb53b10
13230666905bc
1410c9357a188
158024593320
hex47b28f637c

307938419580 has 192 divisors, whose sum is σ = 959085743616. Its totient is φ = 73187712000.

The previous prime is 307938419563. The next prime is 307938419623. The reversal of 307938419580 is 85914839703.

It is a self number, because there is not a number n which added to its sum of digits gives 307938419580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63346350 + ... + 63351210.

It is an arithmetic number, because the mean of its divisors is an integer number (4995238248).

Almost surely, 2307938419580 is an apocalyptic number.

307938419580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307938419580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479542871808).

307938419580 is an abundant number, since it is smaller than the sum of its proper divisors (651147324036).

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

307938419580 is a wasteful number, since it uses less digits than its factorization.

307938419580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748 (or 6746 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 307938419580 in words is "three hundred seven billion, nine hundred thirty-eight million, four hundred nineteen thousand, five hundred eighty".