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30012320100 = 22352714291581
BaseRepresentation
bin11011111100110111…
…111010100101100100
32212110121110211101010
4123330313322211210
5442431123220400
621442032102220
72111506340340
oct337467724544
985417424333
1030012320100
1111801199334
125997094970
132aa3ab99b9
141649d34620
15ba9c5e450
hex6fcdfa964

30012320100 has 72 divisors (see below), whose sum is σ = 99240745408. Its totient is φ = 6859958400.

The previous prime is 30012320099. The next prime is 30012320101. The reversal of 30012320100 is 102321003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30012320099) and next prime (30012320101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30012320101) 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, 7143691 + ... + 7147890.

Almost surely, 230012320100 is an apocalyptic number.

30012320100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30012320100 is an abundant number, since it is smaller than the sum of its proper divisors (69228425308).

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

30012320100 is a wasteful number, since it uses less digits than its factorization.

30012320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14291605 (or 14291598 counting only the distinct ones).

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

Adding to 30012320100 its reverse (102321003), we get a palindrome (30114641103).

The spelling of 30012320100 in words is "thirty billion, twelve million, three hundred twenty thousand, one hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 14291581 28583162 42874743 57166324 71457905 85749486 100041067 142915810 171498972 200082134 214373715 285831620 300123201 357289525 400164268 428747430 500205335 600246402 714579050 857494860 1000410670 1071868575 1200492804 1429158100 1500616005 2000821340 2143737150 2501026675 3001232010 4287474300 5002053350 6002464020 7503080025 10004106700 15006160050 30012320100