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127434240380 = 2256603796487
BaseRepresentation
bin111011010101110101…
…1000011000101111100
3110011221010000011002202
41312223223003011330
54041441131143010
6134313102011032
712130640112416
oct1665353030574
9404833004082
10127434240380
114a054340a37
1220845576a78
13c02b45c985
14624c81b9b6
1534ac9986a5
hex1dabac317c

127434240380 has 24 divisors (see below), whose sum is σ = 267618730848. Its totient is φ = 50972395968.

The previous prime is 127434240347. The next prime is 127434240389. The reversal of 127434240380 is 83042434721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127434240389) 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, 1272497 + ... + 1368983.

It is an arithmetic number, because the mean of its divisors is an integer number (11150780452).

Almost surely, 2127434240380 is an apocalyptic number.

127434240380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127434240380 is an abundant number, since it is smaller than the sum of its proper divisors (140184490468).

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

127434240380 is a wasteful number, since it uses less digits than its factorization.

127434240380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162533 (or 162531 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The spelling of 127434240380 in words is "one hundred twenty-seven billion, four hundred thirty-four million, two hundred forty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 66037 96487 132074 192974 264148 330185 385948 482435 660370 964870 1320740 1929740 6371712019 12743424038 25486848076 31858560095 63717120190 127434240380