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5155381 = 711234171
BaseRepresentation
bin10011101010101000110101
3100200220212001
4103222220311
52304433011
6302255301
761551160
oct23525065
910626761
105155381
112a01350
121887531
1310b672a
14982ad7
156bc7c1
hex4eaa35

5155381 has 32 divisors (see below), whose sum is σ = 6967296. Its totient is φ = 3696000.

The previous prime is 5155351. The next prime is 5155387. The reversal of 5155381 is 1835515.

It is not a de Polignac number, because 5155381 - 29 = 5154869 is a prime.

It is a super-2 number, since 2×51553812 = 53155906510322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155387) 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, 72576 + ... + 72646.

It is an arithmetic number, because the mean of its divisors is an integer number (217728).

Almost surely, 25155381 is an apocalyptic number.

It is an amenable number.

5155381 is a deficient number, since it is larger than the sum of its proper divisors (1811915).

5155381 is a wasteful number, since it uses less digits than its factorization.

5155381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its digits is 3000, while the sum is 28.

The square root of 5155381 is about 2270.5464100080. The cubic root of 5155381 is about 172.7508748995.

The spelling of 5155381 in words is "five million, one hundred fifty-five thousand, three hundred eighty-one".

Divisors: 1 7 11 23 41 71 77 161 253 287 451 497 781 943 1633 1771 2911 3157 5467 6601 10373 11431 17963 20377 32021 66953 72611 125741 224147 468671 736483 5155381