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3852928720 = 245239912113
BaseRepresentation
bin1110010110100111…
…0000011011010000
3100221111222001120201
43211221300123100
530342322204340
61434153344544
7164323232224
oct34551603320
910844861521
103852928720
1116a7972413
128b6408154
134953098a4
142879cc784
151783c379a
hexe5a706d0

3852928720 has 80 divisors (see below), whose sum is σ = 9361400832. Its totient is φ = 1471979520.

The previous prime is 3852928691. The next prime is 3852928721. The reversal of 3852928720 is 278292583.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3852928721) 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, 1822384 + ... + 1824496.

Almost surely, 23852928720 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 3852928720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4680700416).

3852928720 is an abundant number, since it is smaller than the sum of its proper divisors (5508472112).

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

3852928720 is a wasteful number, since it uses less digits than its factorization.

3852928720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 3852928720 is about 62071.9640417475. The cubic root of 3852928720 is about 1567.7025262595.

The spelling of 3852928720 in words is "three billion, eight hundred fifty-two million, nine hundred twenty-eight thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 991 1840 1982 2113 3964 4226 4955 7928 8452 9910 10565 15856 16904 19820 21130 22793 33808 39640 42260 45586 48599 79280 84520 91172 97198 113965 169040 182344 194396 227930 242995 364688 388792 455860 485990 777584 911720 971980 1823440 1943960 2093983 3887920 4187966 8375932 10469915 16751864 20939830 33503728 41879660 48161609 83759320 96323218 167518640 192646436 240808045 385292872 481616090 770585744 963232180 1926464360 3852928720