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53140156321 = 731259394441
BaseRepresentation
bin110001011111011001…
…100110111110100001
312002011102120122021211
4301133121212332201
51332312340000241
640225013550121
73560601606310
oct613731467641
9162142518254
1053140156321
112059a261a6a
12a370645341
13501b4b77a5
1428017bc277
1515b03c1781
hexc5f666fa1

53140156321 has 16 divisors (see below), whose sum is σ = 62715532288. Its totient is φ = 44061926400.

The previous prime is 53140156313. The next prime is 53140156339. The reversal of 53140156321 is 12365104135.

It is a cyclic number.

It is not a de Polignac number, because 53140156321 - 23 = 53140156313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53140156351) 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, 515461 + ... + 609901.

It is an arithmetic number, because the mean of its divisors is an integer number (3919720768).

Almost surely, 253140156321 is an apocalyptic number.

It is an amenable number.

53140156321 is a deficient number, since it is larger than the sum of its proper divisors (9575375967).

53140156321 is a wasteful number, since it uses less digits than its factorization.

53140156321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97072.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 53140156321 in words is "fifty-three billion, one hundred forty million, one hundred fifty-six thousand, three hundred twenty-one".

Divisors: 1 7 31 217 2593 18151 80383 94441 562681 661087 2927671 20493697 244885513 1714198591 7591450903 53140156321