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42976960 = 2651310331
BaseRepresentation
bin1010001111110…
…0011011000000
32222212110022021
42203330123000
542000230320
64133051224
71031204155
oct243743300
988773267
1042976960
1122294254
1212486b14
138b99870
1459ca22c
153b8ddaa
hex28fc6c0

42976960 has 56 divisors (see below), whose sum is σ = 110221776. Its totient is φ = 15866880.

The previous prime is 42976937. The next prime is 42976961. The reversal of 42976960 is 6967924.

It is not an unprimeable number, because it can be changed into a prime (42976961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (1968246).

Almost surely, 242976960 is an apocalyptic number.

42976960 is a gapful number since it is divisible by the number (40) 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 42976960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55110888).

42976960 is an abundant number, since it is smaller than the sum of its proper divisors (67244816).

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

42976960 is a wasteful number, since it uses less digits than its factorization.

42976960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361 (or 10351 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 42976960 is about 6555.6815053814. The cubic root of 42976960 is about 350.2772225408.

The spelling of 42976960 in words is "forty-two million, nine hundred seventy-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 10331 20662 41324 51655 82648 103310 134303 165296 206620 268606 330592 413240 537212 661184 671515 826480 1074424 1343030 1652960 2148848 2686060 3305920 4297696 5372120 8595392 10744240 21488480 42976960