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38538869607 = 337251535653
BaseRepresentation
bin100011111001000110…
…000111101101100111
310200110211200102102000
4203321012013231213
51112411422311412
625412101420343
72533012662300
oct437106075547
9120424612360
1038538869607
1115387207167
12757670a6b3
13383244c474
141c185057a7
1510085b94dc
hex8f9187b67

38538869607 has 48 divisors (see below), whose sum is σ = 66440832480. Its totient is φ = 22014042624.

The previous prime is 38538869597. The next prime is 38538869617. The reversal of 38538869607 is 70696883583.

38538869607 is a `hidden beast` number, since 3 + 8 + 538 + 8 + 6 + 96 + 0 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (38538869597) and next prime (38538869617).

It is not a de Polignac number, because 38538869607 - 24 = 38538869591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38538869617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6814593 + ... + 6820245.

It is an arithmetic number, because the mean of its divisors is an integer number (1384184010).

Almost surely, 238538869607 is an apocalyptic number.

38538869607 is a deficient number, since it is larger than the sum of its proper divisors (27901962873).

38538869607 is a wasteful number, since it uses less digits than its factorization.

38538869607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10829 (or 10816 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 38538869607 in words is "thirty-eight billion, five hundred thirty-eight million, eight hundred sixty-nine thousand, six hundred seven".

Divisors: 1 3 7 9 21 27 49 63 147 189 441 1323 5153 5653 15459 16959 36071 39571 46377 50877 108213 118713 139131 152631 252497 276997 324639 356139 757491 830991 973917 1068417 2272473 2492973 6817419 7478919 29129909 87389727 203909363 262169181 611728089 786507543 1427365541 1835184267 4282096623 5505552801 12846289869 38538869607