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10330420987 = 43732362319
BaseRepresentation
bin10011001111011110…
…11011011011111011
3222122221111202111201
421213233123123323
5132124041432422
64425024435031
7513666062305
oct114757333373
928587452451
1010330420987
114421287207
122003778a77
13c882a9a53
146dddb4975
15406dca727
hex267bdb6fb

10330420987 has 4 divisors (see below), whose sum is σ = 10332787680. Its totient is φ = 10328054296.

The previous prime is 10330420927. The next prime is 10330420999. The reversal of 10330420987 is 78902403301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10330420987 - 211 = 10330418939 is a prime.

It is a super-3 number, since 3×103304209873 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10330420907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176787 + ... + 1185532.

It is an arithmetic number, because the mean of its divisors is an integer number (2583196920).

Almost surely, 210330420987 is an apocalyptic number.

10330420987 is a deficient number, since it is larger than the sum of its proper divisors (2366693).

10330420987 is an equidigital number, since it uses as much as digits as its factorization.

10330420987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366692.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 10330420987 in words is "ten billion, three hundred thirty million, four hundred twenty thousand, nine hundred eighty-seven".

Divisors: 1 4373 2362319 10330420987