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1213401430 = 25467259829
BaseRepresentation
bin100100001010011…
…0000100101010110
310010120020011211201
41020110300211112
54441112321210
6320223223114
742032512333
oct11024604526
93116204751
101213401430
11572a2a4aa
1229a447a9a
13164507317
14b721b98a
15717d653a
hex48530956

1213401430 has 16 divisors (see below), whose sum is σ = 2188807920. Its totient is φ = 484319392.

The previous prime is 1213401419. The next prime is 1213401463. The reversal of 1213401430 is 341043121.

It is a junction number, because it is equal to n+sod(n) for n = 1213401398 and 1213401407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125245 + ... + 134584.

It is an arithmetic number, because the mean of its divisors is an integer number (136800495).

Almost surely, 21213401430 is an apocalyptic number.

1213401430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213401430 is a deficient number, since it is larger than the sum of its proper divisors (975406490).

1213401430 is a wasteful number, since it uses less digits than its factorization.

1213401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260303.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1213401430 is about 34833.9120685576. The cubic root of 1213401430 is about 1066.5998071157.

Adding to 1213401430 its reverse (341043121), we get a palindrome (1554444551).

The spelling of 1213401430 in words is "one billion, two hundred thirteen million, four hundred one thousand, four hundred thirty".

Divisors: 1 2 5 10 467 934 2335 4670 259829 519658 1299145 2598290 121340143 242680286 606700715 1213401430