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641311204074 = 23891200957311
BaseRepresentation
bin10010101010100010010…
…00000110001011101010
32021022100002011122211120
421111101020012023222
541001401132012244
61210340404440110
764222201202142
oct11252110061352
92238302148746
10641311204074
11227a84501672
12a43599a9036
134862456b668
142307aa4b922
1511a36a09819
hex95512062ea

641311204074 has 16 divisors (see below), whose sum is σ = 1297033896960. Its totient is φ = 211368486560.

The previous prime is 641311204057. The next prime is 641311204099. The reversal of 641311204074 is 470402113146.

It is a super-2 number, since 2×6413112040742 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600478122 + ... + 600479189.

It is an arithmetic number, because the mean of its divisors is an integer number (81064618560).

Almost surely, 2641311204074 is an apocalyptic number.

641311204074 is an abundant number, since it is smaller than the sum of its proper divisors (655722692886).

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

641311204074 is a wasteful number, since it uses less digits than its factorization.

641311204074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200957405.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 641311204074 in words is "six hundred forty-one billion, three hundred eleven million, two hundred four thousand, seventy-four".

Divisors: 1 2 3 6 89 178 267 534 1200957311 2401914622 3602871933 7205743866 106885200679 213770401358 320655602037 641311204074