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1022003013 = 37915792731
BaseRepresentation
bin111100111010101…
…000011101000101
32122020002010120110
4330322220131011
54043113044023
6245225023233
734216611423
oct7472503505
92566063513
101022003013
11484991a99
12246324b19
13133972215
1499a38113
155eacaa93
hex3cea8745

1022003013 has 16 divisors (see below), whose sum is σ = 1381299200. Its totient is φ = 672038640.

The previous prime is 1022002997. The next prime is 1022003029. The reversal of 1022003013 is 3103002201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1022002997) and next prime (1022003029).

It is not a de Polignac number, because 1022003013 - 24 = 1022002997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022003013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022003063) 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, 372858 + ... + 375588.

It is an arithmetic number, because the mean of its divisors is an integer number (86331200).

Almost surely, 21022003013 is an apocalyptic number.

It is an amenable number.

1022003013 is a deficient number, since it is larger than the sum of its proper divisors (359296187).

1022003013 is a wasteful number, since it uses less digits than its factorization.

1022003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1022003013 is about 31968.7818504240. The cubic root of 1022003013 is about 1007.2811932193.

Adding to 1022003013 its reverse (3103002201), we get a palindrome (4125005214).

The spelling of 1022003013 in words is "one billion, twenty-two million, three thousand, thirteen".

Divisors: 1 3 79 237 1579 2731 4737 8193 124741 215749 374223 647247 4312249 12936747 340667671 1022003013