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31444302240230 = 25113147431194413
BaseRepresentation
bin1110010011001001100100…
…11101110001100111100110
311010100001020111011112120012
413021210302131301213212
513110140412333141410
6150513151340410222
76423530060023415
oct711446235614746
9133301214145505
1031444302240230
11a0234a9955120
12363a149246972
131471253520749
147a9cab6b147c
15397e12498605
hex1c99327719e6

31444302240230 has 64 divisors (see below), whose sum is σ = 63738626789376. Its totient is φ = 11065153392000.

The previous prime is 31444302240229. The next prime is 31444302240277. The reversal of 31444302240230 is 3204220344413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161642504 + ... + 161836916.

It is an arithmetic number, because the mean of its divisors is an integer number (995916043584).

Almost surely, 231444302240230 is an apocalyptic number.

31444302240230 is an abundant number, since it is smaller than the sum of its proper divisors (32294324549146).

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

31444302240230 is a wasteful number, since it uses less digits than its factorization.

31444302240230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241893.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 31444302240230 its reverse (3204220344413), we get a palindrome (34648522584643).

The spelling of 31444302240230 in words is "thirty-one trillion, four hundred forty-four billion, three hundred two million, two hundred forty thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 1705 3410 47431 94862 194413 237155 388826 474310 521741 972065 1043482 1470361 1944130 2138543 2608705 2940722 4277086 5217410 6026803 7351805 10692715 12053606 14703610 16173971 21385430 30134015 32347942 60268030 66294833 80869855 132589666 161739710 331474165 662948330 9221203003 18442406006 46106015015 92212030030 101433233033 202866466066 285857293093 507166165165 571714586186 1014332330330 1429286465465 2858572930930 3144430224023 6288860448046 15722151120115 31444302240230