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38387732142155 = 51117165703247771
BaseRepresentation
bin10001011101001110101110…
…01000110101100001001011
312000220211110001111210002212
420232213113020311201023
520012421033412022110
6213351025232415335
711041264534263164
oct1056472710654113
9160824401453085
1038387732142155
11112601670344a0
12437b9719a754b
131855c41b84156
14969d947a676b
15468846606e05
hex22e9d723584b

38387732142155 has 32 divisors (see below), whose sum is σ = 53209627688448. Its totient is φ = 26275830105600.

The previous prime is 38387732142101. The next prime is 38387732142157. The reversal of 38387732142155 is 55124123778383.

It is a happy number.

38387732142155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38387732142155 - 212 = 38387732138059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38387732142094 and 38387732142103.

It is not an unprimeable number, because it can be changed into a prime (38387732142157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154808420 + ... + 155056190.

It is an arithmetic number, because the mean of its divisors is an integer number (1662800865264).

Almost surely, 238387732142155 is an apocalyptic number.

38387732142155 is a deficient number, since it is larger than the sum of its proper divisors (14821895546293).

38387732142155 is a wasteful number, since it uses less digits than its factorization.

38387732142155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413507.

The product of its digits is 33868800, while the sum is 59.

The spelling of 38387732142155 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred thirty-two million, one hundred forty-two thousand, one hundred fifty-five".

Divisors: 1 5 11 17 55 85 187 935 165703 247771 828515 1238855 1822733 2725481 2816951 4212107 9113665 13627405 14084755 21060535 30986461 46333177 154932305 231665885 41056398013 205281990065 451620378143 697958766221 2258101890715 3489793831105 7677546428431 38387732142155