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147839013 = 3972937
BaseRepresentation
bin10001100111111…
…01100000100101
3101022012000000000
420303331200211
5300321322023
622400411513
73443416350
oct1063754045
9338160000
10147839013
11764a6703
1241616b99
132482340a
14158c5297
15cea4243
hex8cfd825

147839013 has 80 divisors (see below), whose sum is σ = 269258880. Its totient is φ = 79361856.

The previous prime is 147838997. The next prime is 147839033. The reversal of 147839013 is 310938741.

It is a happy number.

147839013 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 147839013 - 24 = 147838997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147839033) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3995631 + ... + 3995667.

It is an arithmetic number, because the mean of its divisors is an integer number (3365736).

Almost surely, 2147839013 is an apocalyptic number.

It is an amenable number.

147839013 is a deficient number, since it is larger than the sum of its proper divisors (121419867).

147839013 is an frugal number, since it uses more digits than its factorization.

147839013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 147839013 is about 12158.9067353936. The cubic root of 147839013 is about 528.7653866052.

It can be divided in two parts, 147 and 839013, that added together give a triangular number (839160 = T1295).

The spelling of 147839013 in words is "one hundred forty-seven million, eight hundred thirty-nine thousand, thirteen".

Divisors: 1 3 7 9 21 27 29 37 63 81 87 111 189 203 243 259 261 333 567 609 729 777 783 999 1073 1701 1827 2187 2331 2349 2997 3219 5103 5481 6561 6993 7047 7511 8991 9657 15309 16443 19683 20979 21141 22533 26973 28971 45927 49329 62937 63423 67599 80919 86913 137781 147987 188811 190269 202797 242757 260739 443961 566433 570807 608391 728271 782217 1331883 1699299 1825173 2346651 3995649 5097897 5475519 7039953 16426557 21119859 49279671 147839013