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103011030 = 23257315679
BaseRepresentation
bin1100010001111…
…01001011010110
321011211111120100
412020331023112
5202332323110
614115514530
72360402463
oct610751326
9234744510
10103011030
1153168791
122a5b8a46
1318459195
14d97666a
15909bbc0
hex623d2d6

103011030 has 48 divisors (see below), whose sum is σ = 271514880. Its totient is φ = 27091584.

The previous prime is 103011017. The next prime is 103011031. The reversal of 103011030 is 30110301.

It is a super-2 number, since 2×1030110302 = 21222544603321800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103011031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1270 + ... + 14409.

It is an arithmetic number, because the mean of its divisors is an integer number (5656560).

Almost surely, 2103011030 is an apocalyptic number.

103011030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103011030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135757440).

103011030 is an abundant number, since it is smaller than the sum of its proper divisors (168503850).

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

103011030 is a wasteful number, since it uses less digits than its factorization.

103011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765 (or 15762 counting only the distinct ones).

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

The square root of 103011030 is about 10149.4349596418. The cubic root of 103011030 is about 468.7715467429.

Adding to 103011030 its reverse (30110301), we get a palindrome (133121331).

The spelling of 103011030 in words is "one hundred three million, eleven thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 73 90 146 219 365 438 657 730 1095 1314 2190 3285 6570 15679 31358 47037 78395 94074 141111 156790 235185 282222 470370 705555 1144567 1411110 2289134 3433701 5722835 6867402 10301103 11445670 17168505 20602206 34337010 51505515 103011030