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1925424620 = 225721964719
BaseRepresentation
bin111001011000011…
…1010010111101100
311222012000201000222
41302300322113230
512420402041440
6515020310512
765466560600
oct16260722754
94865021028
101925424620
118a8941019
124589a2438
13248b96112
14143a05500
15b40812b5
hex72c3a5ec

1925424620 has 36 divisors (see below), whose sum is σ = 4703539680. Its totient is φ = 660145248.

The previous prime is 1925424617. The next prime is 1925424653. The reversal of 1925424620 is 264245291.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981380 + ... + 983339.

It is an arithmetic number, because the mean of its divisors is an integer number (130653880).

Almost surely, 21925424620 is an apocalyptic number.

1925424620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1925424620 is an abundant number, since it is smaller than the sum of its proper divisors (2778115060).

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

1925424620 is a wasteful number, since it uses less digits than its factorization.

1925424620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964742 (or 1964733 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1925424620 is about 43879.6606641391. The cubic root of 1925424620 is about 1244.0624264327.

The spelling of 1925424620 in words is "one billion, nine hundred twenty-five million, four hundred twenty-four thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 1964719 3929438 7858876 9823595 13753033 19647190 27506066 39294380 55012132 68765165 96271231 137530330 192542462 275060660 385084924 481356155 962712310 1925424620