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10487667820 = 225774911913
BaseRepresentation
bin10011100010001110…
…10001110001101100
31000001220101201121111
421301013101301230
5132434320332240
64452403041404
7520615464010
oct116107216154
930056351544
1010487667820
1144a2019073
122048370264
13cb1a45306
14716c28540
15415adc1ea
hex2711d1c6c

10487667820 has 24 divisors (see below), whose sum is σ = 25170403104. Its totient is φ = 3595771776.

The previous prime is 10487667803. The next prime is 10487667821. The reversal of 10487667820 is 2876678401.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (10487667821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37455817 + ... + 37456096.

It is an arithmetic number, because the mean of its divisors is an integer number (1048766796).

Almost surely, 210487667820 is an apocalyptic number.

10487667820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10487667820 is an abundant number, since it is smaller than the sum of its proper divisors (14682735284).

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

10487667820 is a wasteful number, since it uses less digits than its factorization.

10487667820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74911929 (or 74911927 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 10487667820 in words is "ten billion, four hundred eighty-seven million, six hundred sixty-seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 74911913 149823826 299647652 374559565 524383391 749119130 1048766782 1498238260 2097533564 2621916955 5243833910 10487667820