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1229431030 = 25711731593
BaseRepresentation
bin100100101000111…
…1010000011110110
310011200101120022121
41021101322003312
510004213243110
6321554550154
742315664012
oct11121720366
93150346277
101229431030
11580a88803
122a389835a
1316792a4a9
14b93d1542
1572e00cda
hex4947a0f6

1229431030 has 16 divisors (see below), whose sum is σ = 2244145824. Its totient is φ = 484845760.

The previous prime is 1229431003. The next prime is 1229431031. The reversal of 1229431030 is 301349221.

It is a junction number, because it is equal to n+sod(n) for n = 1229430986 and 1229431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229431031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865087 + ... + 866506.

It is an arithmetic number, because the mean of its divisors is an integer number (140259114).

Almost surely, 21229431030 is an apocalyptic number.

1229431030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229431030 is a deficient number, since it is larger than the sum of its proper divisors (1014714794).

1229431030 is a wasteful number, since it uses less digits than its factorization.

1229431030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731671.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1229431030 is about 35063.2432898042. The cubic root of 1229431030 is about 1071.2760360968.

The spelling of 1229431030 in words is "one billion, two hundred twenty-nine million, four hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 71 142 355 710 1731593 3463186 8657965 17315930 122943103 245886206 614715515 1229431030