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200123103030 = 23544914856949
BaseRepresentation
bin1011101001100001000…
…1000011011100110110
3201010112220220222002220
42322120101003130312
511234323003244110
6231534004343210
720313144210654
oct2723021033466
9633486828086
10200123103030
1177965302344
12329509a4b06
1315b439915c6
1499865a7dd4
15531418e370
hex2e98443736

200123103030 has 32 divisors (see below), whose sum is σ = 481365180000. Its totient is φ = 53247301632.

The previous prime is 200123103007. The next prime is 200123103031. The reversal of 200123103030 is 30301321002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123103031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7415005 + ... + 7441944.

It is an arithmetic number, because the mean of its divisors is an integer number (15042661875).

Almost surely, 2200123103030 is an apocalyptic number.

200123103030 is an abundant number, since it is smaller than the sum of its proper divisors (281242076970).

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

200123103030 is a wasteful number, since it uses less digits than its factorization.

200123103030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14857408.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 200123103030 its reverse (30301321002), we get a palindrome (230424424032).

The spelling of 200123103030 in words is "two hundred billion, one hundred twenty-three million, one hundred three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 449 898 1347 2245 2694 4490 6735 13470 14856949 29713898 44570847 74284745 89141694 148569490 222854235 445708470 6670770101 13341540202 20012310303 33353850505 40024620606 66707701010 100061551515 200123103030