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10100001009 = 371279114157
BaseRepresentation
bin10010110100000000…
…11100100011110001
3222001212221012201110
421122000130203301
5131141100013014
64350114023533
7505200410040
oct113200344361
928055835643
1010100001009
11431320727a
121b5a577ba9
13c4c631577
146bb554557
153e1a62d59
hex25a01c8f1

10100001009 has 32 divisors (see below), whose sum is σ = 15532425216. Its totient is φ = 5718323520.

The previous prime is 10100001001. The next prime is 10100001059. The reversal of 10100001009 is 90010000101.

It is not a de Polignac number, because 10100001009 - 23 = 10100001001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10100000985 and 10100001003.

It is not an unprimeable number, because it can be changed into a prime (10100001001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2427559 + ... + 2431715.

It is an arithmetic number, because the mean of its divisors is an integer number (485388288).

Almost surely, 210100001009 is an apocalyptic number.

It is an amenable number.

10100001009 is a deficient number, since it is larger than the sum of its proper divisors (5432424207).

10100001009 is a wasteful number, since it uses less digits than its factorization.

10100001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205.

The product of its (nonzero) digits is 9, while the sum is 12.

The spelling of 10100001009 in words is "ten billion, one hundred million, one thousand, nine".

Divisors: 1 3 7 21 127 381 889 911 2667 2733 4157 6377 12471 19131 29099 87297 115697 347091 527939 809879 1583817 2429637 3695573 3787027 11086719 11361081 26509189 79527567 480952429 1442857287 3366667003 10100001009