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1144949430 = 235231659347
BaseRepresentation
bin100010000111110…
…1000101010110110
32221210102110100110
41010033220222312
54321101340210
6305340123450
740241623662
oct10417505266
92853373313
101144949430
115383264a9
1227b536586
1315328b291
14ac0bd8a2
156a7b4420
hex443e8ab6

1144949430 has 32 divisors (see below), whose sum is σ = 2867353344. Its totient is φ = 292044896.

The previous prime is 1144949417. The next prime is 1144949431. The reversal of 1144949430 is 349494411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144949431) 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, 828984 + ... + 830363.

It is an arithmetic number, because the mean of its divisors is an integer number (89604792).

Almost surely, 21144949430 is an apocalyptic number.

1144949430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144949430 is an abundant number, since it is smaller than the sum of its proper divisors (1722403914).

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

1144949430 is a wasteful number, since it uses less digits than its factorization.

1144949430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659380.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1144949430 is about 33837.1013829495. The cubic root of 1144949430 is about 1046.1535547131.

The spelling of 1144949430 in words is "one billion, one hundred forty-four million, nine hundred forty-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 1659347 3318694 4978041 8296735 9956082 16593470 24890205 38164981 49780410 76329962 114494943 190824905 228989886 381649810 572474715 1144949430