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71480245157 = 1511261137537
BaseRepresentation
bin100001010010010001…
…1011111101110100101
320211111120200200111022
41002210203133232211
52132342420321112
652500525420525
75110230026126
oct1024443375645
9224446620438
1071480245157
112835080a182
1211a2a70a745
136982010c69
14366145604d
151cd5556d72
hex10a48dfba5

71480245157 has 8 divisors (see below), whose sum is σ = 71961246912. Its totient is φ = 70999344000.

The previous prime is 71480245153. The next prime is 71480245171. The reversal of 71480245157 is 75154208417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71480245157 - 22 = 71480245153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480245153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885493 + ... + 1923029.

It is an arithmetic number, because the mean of its divisors is an integer number (8995155864).

Almost surely, 271480245157 is an apocalyptic number.

It is an amenable number.

71480245157 is a deficient number, since it is larger than the sum of its proper divisors (481001755).

71480245157 is a wasteful number, since it uses less digits than its factorization.

71480245157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50299.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 71480245157 in words is "seventy-one billion, four hundred eighty million, two hundred forty-five thousand, one hundred fifty-seven".

Divisors: 1 151 12611 37537 1904261 5668087 473379107 71480245157