Search a number
-
+
1023131830 = 25714616169
BaseRepresentation
bin111100111110111…
…100000010110110
32122022012111000111
4330332330002312
54043410204310
6245305133234
734232322430
oct7476740266
92568174014
101023131830
114855930a6
1224678a21a
13133c78c66
1499c4d650
155ec5028a
hex3cfbc0b6

1023131830 has 16 divisors (see below), whose sum is σ = 2104728480. Its totient is φ = 350788032.

The previous prime is 1023131771. The next prime is 1023131867. The reversal of 1023131830 is 381313201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7308015 + ... + 7308154.

It is an arithmetic number, because the mean of its divisors is an integer number (131545530).

Almost surely, 21023131830 is an apocalyptic number.

1023131830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023131830 is an abundant number, since it is smaller than the sum of its proper divisors (1081596650).

1023131830 is a wasteful number, since it uses less digits than its factorization.

1023131830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14616183.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1023131830 is about 31986.4319673201. The cubic root of 1023131830 is about 1007.6519089454.

The spelling of 1023131830 in words is "one billion, twenty-three million, one hundred thirty-one thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 14616169 29232338 73080845 102313183 146161690 204626366 511565915 1023131830