Search a number
-
+
2029459930985 = 53779138861439
BaseRepresentation
bin11101100010000101001…
…111001111111101101001
321012000101112220101221002
4131202011033033331221
5231222313220242420
64152153201324345
7266423623533464
oct35420517177551
97160345811832
102029459930985
1171276424aa93
122893a60366b5
131194b9a852b6
14703252b22db
1537bce4c6075
hex1d8853cff69

2029459930985 has 16 divisors (see below), whose sum is σ = 2532832665600. Its totient is φ = 1559691671616.

The previous prime is 2029459930961. The next prime is 2029459931003. The reversal of 2029459930985 is 5890399549202.

It is a cyclic number.

It is not a de Polignac number, because 2029459930985 - 26 = 2029459930921 is a prime.

It is a super-2 number, since 2×20294599309852 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69416105 + ... + 69445334.

It is an arithmetic number, because the mean of its divisors is an integer number (158302041600).

Almost surely, 22029459930985 is an apocalyptic number.

It is an amenable number.

2029459930985 is a deficient number, since it is larger than the sum of its proper divisors (503372734615).

2029459930985 is a wasteful number, since it uses less digits than its factorization.

2029459930985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138861560.

The product of its (nonzero) digits is 62985600, while the sum is 65.

The spelling of 2029459930985 in words is "two trillion, twenty-nine billion, four hundred fifty-nine million, nine hundred thirty thousand, nine hundred eighty-five".

Divisors: 1 5 37 79 185 395 2923 14615 138861439 694307195 5137873243 10970053681 25689366215 54850268405 405891986197 2029459930985