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20202312232120 = 2352944938787943
BaseRepresentation
bin1001001011111101101111…
…01001001110110010111000
32122112022200212121202022211
410211332313221032302320
510121443313412411440
6110544451503224504
74153366062434254
oct445766751166270
978468625552284
1020202312232120
116489830644477
1223234155a8134
13b370ba66b8a5
144dbb23473264
152507962e5eea
hex125fb7a4ecb8

20202312232120 has 64 divisors (see below), whose sum is σ = 47127351960000. Its totient is φ = 7784895111168.

The previous prime is 20202312232099. The next prime is 20202312232153. The reversal of 20202312232120 is 2123221320202.

It is a junction number, because it is equal to n+sod(n) for n = 20202312232091 and 20202312232100.

It is a congruent number.

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, 18873132 + ... + 19914811.

It is an arithmetic number, because the mean of its divisors is an integer number (736364874375).

Almost surely, 220202312232120 is an apocalyptic number.

20202312232120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202312232120 is an abundant number, since it is smaller than the sum of its proper divisors (26925039727880).

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

20202312232120 is a wasteful number, since it uses less digits than its factorization.

20202312232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38788432 (or 38788428 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20202312232120 its reverse (2123221320202), we get a palindrome (22325533552322).

The spelling of 20202312232120 in words is "twenty trillion, two hundred two billion, three hundred twelve million, two hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 449 580 898 1160 1796 2245 3592 4490 8980 13021 17960 26042 52084 65105 104168 130210 260420 520840 38787943 77575886 155151772 193939715 310303544 387879430 775758860 1124850347 1551517720 2249700694 4499401388 5624251735 8998802776 11248503470 17415786407 22497006940 34831572814 44994013880 69663145628 87078932035 139326291256 174157864070 348315728140 505057805803 696631456280 1010115611606 2020231223212 2525289029015 4040462446424 5050578058030 10101156116060 20202312232120