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48101391 = 3313433187
BaseRepresentation
bin1011011101111…
…1100000001111
310100111210201000
42313133200033
544303221031
64434551343
71122566202
oct267374017
9110453630
1048101391
1125174318
1214138553
139c72180
146561939
1543523e6
hex2ddf80f

48101391 has 32 divisors (see below), whose sum is σ = 78552320. Its totient is φ = 28903392.

The previous prime is 48101363. The next prime is 48101393. The reversal of 48101391 is 19310184.

It is not a de Polignac number, because 48101391 - 25 = 48101359 is a prime.

It is a super-3 number, since 3×481013913 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48101393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13500 + ... + 16686.

It is an arithmetic number, because the mean of its divisors is an integer number (2454760).

Almost surely, 248101391 is an apocalyptic number.

48101391 is a deficient number, since it is larger than the sum of its proper divisors (30450929).

48101391 is a wasteful number, since it uses less digits than its factorization.

48101391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3246 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 48101391 is about 6935.5166354065. The cubic root of 48101391 is about 363.6798270416.

The spelling of 48101391 in words is "forty-eight million, one hundred one thousand, three hundred ninety-one".

Divisors: 1 3 9 13 27 39 43 117 129 351 387 559 1161 1677 3187 5031 9561 15093 28683 41431 86049 124293 137041 372879 411123 1118637 1233369 1781533 3700107 5344599 16033797 48101391