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103003031019 = 3723618634051
BaseRepresentation
bin101111111101101110…
…1011000010111101011
3100211212110101010100210
41133323131120113223
53141422233443034
6115152520232203
710304340213660
oct1377335302753
9324773333323
10103003031019
113a757586819
1217b6760b663
139936a15785
144db1c15a67
152a2cbcb8e9
hex17fb7585eb

103003031019 has 64 divisors (see below), whose sum is σ = 166700187648. Its totient is φ = 55299024000.

The previous prime is 103003030993. The next prime is 103003031057. The reversal of 103003031019 is 910130300301.

It is not a de Polignac number, because 103003031019 - 211 = 103003028971 is a prime.

It is a super-2 number, since 2×1030030310192 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 103003030986 and 103003031004.

It is not an unprimeable number, because it can be changed into a prime (103003031069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25424544 + ... + 25428594.

It is an arithmetic number, because the mean of its divisors is an integer number (2604690432).

Almost surely, 2103003031019 is an apocalyptic number.

103003031019 is a deficient number, since it is larger than the sum of its proper divisors (63697156629).

103003031019 is a wasteful number, since it uses less digits than its factorization.

103003031019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008.

The product of its (nonzero) digits is 243, while the sum is 21.

The spelling of 103003031019 in words is "one hundred three billion, three million, thirty-one thousand, nineteen".

Divisors: 1 3 7 21 23 61 69 161 183 427 483 863 1281 1403 2589 4051 4209 6041 9821 12153 18123 19849 28357 29463 52643 59547 85071 93173 138943 157929 247111 279519 368501 416829 652211 741333 1105503 1210789 1729777 1956633 3496013 3632367 5189331 5683553 8475523 10488039 17050659 24472091 25426569 39784871 73416273 80408299 119354613 213256793 241224897 562858093 639770379 1492797551 1688574279 4478392653 4904906239 14714718717 34334343673 103003031019