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134216980 = 22531713049
BaseRepresentation
bin1111111111111…
…11110100010100
3100100112221002021
413333333310110
5233324420410
621152422524
73216553102
oct777776424
9310487067
10134216980
1169842227
1238b47a44
1321a64041
1413b7ac72
15bbb2eda
hex7fffd14

134216980 has 48 divisors (see below), whose sum is σ = 295142400. Its totient is φ = 51206400.

The previous prime is 134216947. The next prime is 134216987. The reversal of 134216980 is 89612431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134216987) 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, 42496 + ... + 45544.

It is an arithmetic number, because the mean of its divisors is an integer number (6148800).

Almost surely, 2134216980 is an apocalyptic number.

134216980 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 134216980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147571200).

134216980 is an abundant number, since it is smaller than the sum of its proper divisors (160925420).

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

134216980 is a wasteful number, since it uses less digits than its factorization.

134216980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 134216980 is about 11585.2052204525. The cubic root of 134216980 is about 511.9990488670. Note that the first 3 decimals are identical.

The spelling of 134216980 in words is "one hundred thirty-four million, two hundred sixteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 71 124 142 155 284 310 355 620 710 1420 2201 3049 4402 6098 8804 11005 12196 15245 22010 30490 44020 60980 94519 189038 216479 378076 432958 472595 865916 945190 1082395 1890380 2164790 4329580 6710849 13421698 26843396 33554245 67108490 134216980