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4138911488 = 2861713733
BaseRepresentation
bin1111011010110010…
…1100011100000000
3101200110002111012002
43312230230130000
531434030131423
61522411123132
7204365111225
oct36654543400
911613074162
104138911488
111834342508
129761434a8
1350c63a46a
142b399394c
15193564228
hexf6b2c700

4138911488 has 72 divisors (see below), whose sum is σ = 8517642336. Its totient is φ = 2006323200.

The previous prime is 4138911487. The next prime is 4138911529. The reversal of 4138911488 is 8841198314.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138911487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106870 + ... + 1110602.

It is an arithmetic number, because the mean of its divisors is an integer number (118300588).

Almost surely, 24138911488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4138911488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4258821168).

4138911488 is an abundant number, since it is smaller than the sum of its proper divisors (4378730848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4138911488 is an equidigital number, since it uses as much as digits as its factorization.

4138911488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881 (or 3867 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 4138911488 is about 64334.3725235585. The cubic root of 4138911488 is about 1605.5680339795.

The spelling of 4138911488 in words is "four billion, one hundred thirty-eight million, nine hundred eleven thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 32 61 64 71 122 128 142 244 256 284 488 568 976 1136 1952 2272 3733 3904 4331 4544 7466 7808 8662 9088 14932 15616 17324 18176 29864 34648 59728 69296 119456 138592 227713 238912 265043 277184 455426 477824 530086 554368 910852 955648 1060172 1108736 1821704 2120344 3643408 4240688 7286816 8481376 14573632 16167623 16962752 29147264 32335246 33925504 58294528 64670492 67851008 129340984 258681968 517363936 1034727872 2069455744 4138911488