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113213980 = 225112272267
BaseRepresentation
bin1101011111110…
…00001000011100
321220000212101101
412233320020130
5212440321410
615122322444
72543205625
oct657701034
9256025341
10113213980
11589a7380
1231ab9424
131a5bc229
1411070a4c
159e14d3a
hex6bf821c

113213980 has 48 divisors (see below), whose sum is σ = 260620416. Its totient is φ = 40969280.

The previous prime is 113213977. The next prime is 113213983. The reversal of 113213980 is 89312311.

It is an interprime number because it is at equal distance from previous prime (113213977) and next prime (113213983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113213983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48807 + ... + 51073.

It is an arithmetic number, because the mean of its divisors is an integer number (5429592).

Almost surely, 2113213980 is an apocalyptic number.

113213980 is a gapful number since it is divisible by the number (10) 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 113213980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130310208).

113213980 is an abundant number, since it is smaller than the sum of its proper divisors (147406436).

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

113213980 is a wasteful number, since it uses less digits than its factorization.

113213980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 113213980 is about 10640.2058250769. The cubic root of 113213980 is about 483.7637840575.

The spelling of 113213980 in words is "one hundred thirteen million, two hundred thirteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 227 454 908 1135 2267 2270 2497 4534 4540 4994 9068 9988 11335 12485 22670 24937 24970 45340 49874 49940 99748 124685 249370 498740 514609 1029218 2058436 2573045 5146090 5660699 10292180 11321398 22642796 28303495 56606990 113213980