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16230930940 = 2257532187457
BaseRepresentation
bin11110001110111000…
…00101100111111100
31112220011100201111101
433013130011213330
5231220104242230
611242325102444
71113134431240
oct170734054774
945804321441
1016230930940
116979a34714
12318b857a24
1316b8880163
14add8c6420
1564ee0eaca
hex3c77059fc

16230930940 has 48 divisors (see below), whose sum is σ = 39689237952. Its totient is φ = 5459890176.

The previous prime is 16230930923. The next prime is 16230930949. The reversal of 16230930940 is 4903903261.

It is a self number, because there is not a number n which added to its sum of digits gives 16230930940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16230930949) 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, 1086309 + ... + 1101148.

It is an arithmetic number, because the mean of its divisors is an integer number (826859124).

Almost surely, 216230930940 is an apocalyptic number.

16230930940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16230930940 is an abundant number, since it is smaller than the sum of its proper divisors (23458307012).

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

16230930940 is a wasteful number, since it uses less digits than its factorization.

16230930940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187526 (or 2187524 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 16230930940 in words is "sixteen billion, two hundred thirty million, nine hundred thirty thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 53 70 106 140 212 265 371 530 742 1060 1484 1855 3710 7420 2187457 4374914 8749828 10937285 15312199 21874570 30624398 43749140 61248796 76560995 115935221 153121990 231870442 306243980 463740884 579676105 811546547 1159352210 1623093094 2318704420 3246186188 4057732735 8115465470 16230930940