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39442213569980 = 22513491033089441
BaseRepresentation
bin10001111011111010110110…
…01000010000010110111100
312011122122020200100111111002
420331331123020100112330
520132210123133214410
6215515300333145432
711210414551444214
oct1075753310202674
9164578220314432
1039442213569980
11116273923384a1
1245101b962b278
131901500492940
149a50287b3244
15485eb0d837a5
hex23df5b2105bc

39442213569980 has 48 divisors (see below), whose sum is σ = 89201928461184. Its totient is φ = 14562977556480.

The previous prime is 39442213569911. The next prime is 39442213569989. The reversal of 39442213569980 is 8996531224493.

It is a super-2 number, since 2×394422135699802 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39442213569989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11222060 + ... + 14311500.

It is an arithmetic number, because the mean of its divisors is an integer number (1858373509608).

Almost surely, 239442213569980 is an apocalyptic number.

It is an amenable number.

39442213569980 is an abundant number, since it is smaller than the sum of its proper divisors (49759714891204).

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

39442213569980 is a wasteful number, since it uses less digits than its factorization.

39442213569980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138566 (or 3138564 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 39442213569980 in words is "thirty-nine trillion, four hundred forty-two billion, two hundred thirteen million, five hundred sixty-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 49103 98206 196412 245515 491030 638339 982060 1276678 2553356 3089441 3191695 6178882 6383390 12357764 12766780 15447205 30894410 40162733 61788820 80325466 160650932 200813665 401627330 803254660 151700821423 303401642846 606803285692 758504107115 1517008214230 1972110678499 3034016428460 3944221356998 7888442713996 9860553392495 19721106784990 39442213569980