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30452021425 = 527282730059
BaseRepresentation
bin11100010111000101…
…001111100010110001
32220121020211222012101
4130113011033202301
5444331204141200
621553420300401
72125425624400
oct342705174261
986536758171
1030452021425
1111a07410461
125a9a3a1701
132b43c1bbb7
14168c4b1637
15bd366626a
hex71714f8b1

30452021425 has 36 divisors (see below), whose sum is σ = 43980064560. Its totient is φ = 20855442720.

The previous prime is 30452021419. The next prime is 30452021429. The reversal of 30452021425 is 52412025403.

It is not a de Polignac number, because 30452021425 - 25 = 30452021393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30452021393 and 30452021402.

It is not an unprimeable number, because it can be changed into a prime (30452021429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 998046 + ... + 1028104.

It is an arithmetic number, because the mean of its divisors is an integer number (1221668460).

Almost surely, 230452021425 is an apocalyptic number.

30452021425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30452021425 is a deficient number, since it is larger than the sum of its proper divisors (13528043135).

30452021425 is a wasteful number, since it uses less digits than its factorization.

30452021425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30910 (or 30898 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 30452021425 its reverse (52412025403), we get a palindrome (82864046828).

The spelling of 30452021425 in words is "thirty billion, four hundred fifty-two million, twenty-one thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 827 1225 4135 5789 20675 28945 30059 40523 144725 150295 202615 210413 751475 1013075 1052065 1472891 5260325 7364455 24858793 36822275 124293965 174011551 621469825 870057755 1218080857 4350288775 6090404285 30452021425