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103020120030 = 23513140165371
BaseRepresentation
bin101111111110001111…
…0100100011111011110
3100211220122112100002010
41133330132210133132
53141441122320110
6115154330412050
710304635400112
oct1377436443736
9324818470063
10103020120030
113a766198a73
1217b71291026
13993a419c09
144db41c3742
152a2e455020
hex17fc7a47de

103020120030 has 64 divisors (see below), whose sum is σ = 249760786176. Its totient is φ = 27193920000.

The previous prime is 103020120017. The next prime is 103020120043. The reversal of 103020120030 is 30021020301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (103020120017) and next prime (103020120043).

It is a super-2 number, since 2×1030201200302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103020119988 and 103020120015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1543245 + ... + 1608615.

It is an arithmetic number, because the mean of its divisors is an integer number (3902512284).

Almost surely, 2103020120030 is an apocalyptic number.

103020120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103020120030 is an abundant number, since it is smaller than the sum of its proper divisors (146740666146).

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

103020120030 is a wasteful number, since it uses less digits than its factorization.

103020120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65913.

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

Adding to 103020120030 its reverse (30021020301), we get a palindrome (133041140331).

The spelling of 103020120030 in words is "one hundred three billion, twenty million, one hundred twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 401 655 786 802 1203 1310 1965 2005 2406 3930 4010 6015 12030 52531 65371 105062 130742 157593 196113 262655 315186 326855 392226 525310 653710 787965 980565 1575930 1961130 8563601 17127202 25690803 26213771 42818005 51381606 52427542 78641313 85636010 128454015 131068855 157282626 256908030 262137710 393206565 786413130 3434004001 6868008002 10302012003 17170020005 20604024006 34340040010 51510060015 103020120030