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134455620 = 223513223773
BaseRepresentation
bin10000000001110…
…10000101000100
3100101000001102210
420000322011010
5233410034440
621201503420
73221565615
oct1000720504
9311001383
10134455620
1169995552
1239041b70
1321b18850
1413bddc0c
15bc0da80
hex803a144

134455620 has 96 divisors (see below), whose sum is σ = 407780352. Its totient is φ = 32905728.

The previous prime is 134455619. The next prime is 134455627. The reversal of 134455620 is 26554431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (134455627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173554 + ... + 174326.

It is an arithmetic number, because the mean of its divisors is an integer number (4247712).

Almost surely, 2134455620 is an apocalyptic number.

134455620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 11595×11596.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134455620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203890176).

134455620 is an abundant number, since it is smaller than the sum of its proper divisors (273324732).

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

134455620 is a wasteful number, since it uses less digits than its factorization.

134455620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 134455620 is about 11595.4999892200. The cubic root of 134455620 is about 512.3023167788.

The spelling of 134455620 in words is "one hundred thirty-four million, four hundred fifty-five thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 223 260 390 446 669 773 780 892 1115 1338 1546 2230 2319 2676 2899 3092 3345 3865 4460 4638 5798 6690 7730 8697 9276 10049 11595 11596 13380 14495 15460 17394 20098 23190 28990 30147 34788 40196 43485 46380 50245 57980 60294 86970 100490 120588 150735 172379 173940 200980 301470 344758 517137 602940 689516 861895 1034274 1723790 2068548 2240927 2585685 3447580 4481854 5171370 6722781 8963708 10342740 11204635 13445562 22409270 26891124 33613905 44818540 67227810 134455620