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30231400450 = 25215116723977
BaseRepresentation
bin11100001001111011…
…101001000000000010
32220000212201021010011
4130021323221000002
5443403214303300
621515455455134
72120106443506
oct341173510002
986025637104
1030231400450
1111903923679
125a385274aa
132b0a2c4944
14166b082306
15bbe0d6eba
hex709ee9002

30231400450 has 48 divisors (see below), whose sum is σ = 56944105344. Its totient is φ = 11940048000.

The previous prime is 30231400447. The next prime is 30231400453. The reversal of 30231400450 is 5400413203.

It is an interprime number because it is at equal distance from previous prime (30231400447) and next prime (30231400453).

It is not an unprimeable number, because it can be changed into a prime (30231400453) 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, 1248862 + ... + 1272838.

It is an arithmetic number, because the mean of its divisors is an integer number (1186335528).

Almost surely, 230231400450 is an apocalyptic number.

30231400450 is a deficient number, since it is larger than the sum of its proper divisors (26712704894).

30231400450 is a wasteful number, since it uses less digits than its factorization.

30231400450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24307 (or 24302 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 30231400450 its reverse (5400413203), we get a palindrome (35631813653).

The spelling of 30231400450 in words is "thirty billion, two hundred thirty-one million, four hundred thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 151 167 302 334 755 835 1510 1670 3775 4175 7550 8350 23977 25217 47954 50434 119885 126085 239770 252170 599425 630425 1198850 1260850 3620527 4004159 7241054 8008318 18102635 20020795 36205270 40041590 90513175 100103975 181026350 200207950 604628009 1209256018 3023140045 6046280090 15115700225 30231400450