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23430655660 = 2251429819827
BaseRepresentation
bin10101110100100100…
…110110111010101100
32020110220220122002111
4111310210312322230
5340441221440120
614433000133404
71456430200306
oct256444667254
966426818074
1023430655660
119a33aa3435
12465aa67264
132295374cb9
1411c3b92976
1592202b75a
hex574936eac

23430655660 has 24 divisors (see below), whose sum is σ = 49238869680. Its totient is φ = 9365692224.

The previous prime is 23430655639. The next prime is 23430655669. The reversal of 23430655660 is 6655603432.

It is not an unprimeable number, because it can be changed into a prime (23430655669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381334 + ... + 438493.

It is an arithmetic number, because the mean of its divisors is an integer number (2051619570).

Almost surely, 223430655660 is an apocalyptic number.

23430655660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23430655660 is an abundant number, since it is smaller than the sum of its proper divisors (25808214020).

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

23430655660 is a wasteful number, since it uses less digits than its factorization.

23430655660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821265 (or 821263 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 23430655660 in words is "twenty-three billion, four hundred thirty million, six hundred fifty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 1429 2858 5716 7145 14290 28580 819827 1639654 3279308 4099135 8198270 16396540 1171532783 2343065566 4686131132 5857663915 11715327830 23430655660