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103188015828 = 22331756202623
BaseRepresentation
bin110000000011001111…
…1000010101011010100
3100212100100110022211000
41200012133002223110
53142312113001303
6115223125143300
710312044443202
oct1400637025324
9325310408730
10103188015828
113a841a43627
1217bb955ab30
139966143541
144dcc60a072
152a3e06bda3
hex18067c2ad4

103188015828 has 48 divisors (see below), whose sum is σ = 283261224960. Its totient is φ = 32372710272.

The previous prime is 103188015797. The next prime is 103188015851. The reversal of 103188015828 is 828510881301.

It is a super-2 number, since 2×1031880158282 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28099476 + ... + 28103147.

It is an arithmetic number, because the mean of its divisors is an integer number (5901275520).

Almost surely, 2103188015828 is an apocalyptic number.

103188015828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

103188015828 is an abundant number, since it is smaller than the sum of its proper divisors (180073209132).

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

103188015828 is a wasteful number, since it uses less digits than its factorization.

103188015828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56202653 (or 56202645 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 45.

The spelling of 103188015828 in words is "one hundred three billion, one hundred eighty-eight million, fifteen thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 306 459 612 918 1836 56202623 112405246 168607869 224810492 337215738 505823607 674431476 955444591 1011647214 1517470821 1910889182 2023294428 2866333773 3034941642 3821778364 5732667546 6069883284 8599001319 11465335092 17198002638 25797003957 34396005276 51594007914 103188015828