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1127430380 = 225113659757
BaseRepresentation
bin100001100110011…
…0011100011101100
32220120110101201202
41003030303203230
54302110233010
6303512425032
736640000016
oct10314634354
92816411652
101127430380
1152945014a
122756a8178
1314c76618b
14a9a3d1b6
1568ea36a5
hex433338ec

1127430380 has 48 divisors (see below), whose sum is σ = 2395340640. Its totient is φ = 445713408.

The previous prime is 1127430349. The next prime is 1127430383. The reversal of 1127430380 is 830347211.

It is not an unprimeable number, because it can be changed into a prime (1127430383) 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, 1488962 + ... + 1489718.

It is an arithmetic number, because the mean of its divisors is an integer number (49902930).

Almost surely, 21127430380 is an apocalyptic number.

1127430380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127430380 is an abundant number, since it is smaller than the sum of its proper divisors (1267910260).

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

1127430380 is a wasteful number, since it uses less digits than its factorization.

1127430380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1127430380 is about 33577.2300823043. The cubic root of 1127430380 is about 1040.7903201233.

Adding to 1127430380 its reverse (830347211), we get a palindrome (1957777591).

The spelling of 1127430380 in words is "one billion, one hundred twenty-seven million, four hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 113 226 452 565 659 757 1130 1318 1514 2260 2636 3028 3295 3785 6590 7570 13180 15140 74467 85541 148934 171082 297868 342164 372335 427705 498863 744670 855410 997726 1489340 1710820 1995452 2494315 4988630 9977260 56371519 112743038 225486076 281857595 563715190 1127430380