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672401080 = 235131637933
BaseRepresentation
bin101000000101000…
…000011010111000
31201212020111212201
4220011000122320
52334113313310
6150415515544
722443213001
oct5005003270
91655214781
10672401080
1131560997a
12169228bb4
13a93c8280
14654321a8
153e06ee3a
hex281406b8

672401080 has 64 divisors (see below), whose sum is σ = 1639481760. Its totient is φ = 246716928.

The previous prime is 672401033. The next prime is 672401167. The reversal of 672401080 is 80104276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80794 + ... + 88726.

Almost surely, 2672401080 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 672401080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819740880).

672401080 is an abundant number, since it is smaller than the sum of its proper divisors (967080680).

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

672401080 is a wasteful number, since it uses less digits than its factorization.

672401080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120 (or 8116 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 672401080 is about 25930.6976381277. The cubic root of 672401080 is about 876.0780529966.

The spelling of 672401080 in words is "six hundred seventy-two million, four hundred one thousand, eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 163 260 326 520 652 815 1304 1630 2119 3260 4238 6520 7933 8476 10595 15866 16952 21190 31732 39665 42380 63464 79330 84760 103129 158660 206258 317320 412516 515645 825032 1031290 1293079 2062580 2586158 4125160 5172316 6465395 10344632 12930790 16810027 25861580 33620054 51723160 67240108 84050135 134480216 168100270 336200540 672401080