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20712465601707 = 3112291967556341
BaseRepresentation
bin1001011010110011111110…
…01001111001010010101011
32201100002111100012002012210
410231121333021321102223
510203323112143223312
6112015101512340203
74235266130511345
oct455317711712253
981302440162183
1020712465601707
11666611a94a800
1223a626a9a4663
13b7323c1b5659
145186bad40295
1525dba34cee3c
hex12d67f2794ab

20712465601707 has 24 divisors (see below), whose sum is σ = 31402199218320. Its totient is φ = 12120147054400.

The previous prime is 20712465601699. The next prime is 20712465601717. The reversal of 20712465601707 is 70710656421702.

It is not a de Polignac number, because 20712465601707 - 23 = 20712465601699 is a prime.

It is a super-2 number, since 2×207124656017072 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20712465601717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 983767644 + ... + 983788697.

It is an arithmetic number, because the mean of its divisors is an integer number (1308424967430).

Almost surely, 220712465601707 is an apocalyptic number.

20712465601707 is a deficient number, since it is larger than the sum of its proper divisors (10689733616613).

20712465601707 is a wasteful number, since it uses less digits than its factorization.

20712465601707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967556395 (or 1967556384 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 20712465601707 in words is "twenty trillion, seven hundred twelve billion, four hundred sixty-five million, six hundred one thousand, seven hundred seven".

Divisors: 1 3 11 29 33 87 121 319 363 957 3509 10527 1967556341 5902669023 21643119751 57059133889 64929359253 171177401667 238074317261 627650472779 714222951783 1882951418337 6904155200569 20712465601707