Search a number
-
+
1025565970 = 2511131742187
BaseRepresentation
bin111101001000001…
…110010100010010
32122110210011000211
4331020032110102
54100021102340
6245433234334
734262111152
oct7510162422
92573704024
101025565970
114869a5990
122475629aa
1313461bb90
149a2c4762
15600815ea
hex3d20e512

1025565970 has 64 divisors (see below), whose sum is σ = 2296377216. Its totient is φ = 323988480.

The previous prime is 1025565967. The next prime is 1025565973. The reversal of 1025565970 is 795655201.

It is an interprime number because it is at equal distance from previous prime (1025565967) and next prime (1025565973).

It is not an unprimeable number, because it can be changed into a prime (1025565973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3217 + ... + 45403.

It is an arithmetic number, because the mean of its divisors is an integer number (35880894).

Almost surely, 21025565970 is an apocalyptic number.

1025565970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025565970 is an abundant number, since it is smaller than the sum of its proper divisors (1270811246).

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

1025565970 is a wasteful number, since it uses less digits than its factorization.

1025565970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42235.

The product of its (nonzero) digits is 94500, while the sum is 40.

The square root of 1025565970 is about 32024.4589337587. The cubic root of 1025565970 is about 1008.4503799348.

The spelling of 1025565970 in words is "one billion, twenty-five million, five hundred sixty-five thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 13 17 22 26 34 55 65 85 110 130 143 170 187 221 286 374 442 715 935 1105 1430 1870 2210 2431 4862 12155 24310 42187 84374 210935 421870 464057 548431 717179 928114 1096862 1434358 2320285 2742155 3585895 4640570 5484310 6032741 7171790 7888969 9323327 12065482 15777938 18646654 30163705 39444845 46616635 60327410 78889690 93233270 102556597 205113194 512782985 1025565970