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20328823948 = 22531091396329
BaseRepresentation
bin10010111011101100…
…010011110010001100
31221110202021020220111
4102323230103302030
5313113134331243
613201113125404
71316524103206
oct227354236214
957422236814
1020328823948
118692100354
123b340b9864
131bbc858314
14dabc3d776
157dea7039d
hex4bbb13c8c

20328823948 has 48 divisors (see below), whose sum is σ = 36848196000. Its totient is φ = 9808501248.

The previous prime is 20328823939. The next prime is 20328823973. The reversal of 20328823948 is 84932882302.

It is a happy number.

It is a super-3 number, since 3×203288239483 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 3208848 + ... + 3215176.

It is an arithmetic number, because the mean of its divisors is an integer number (767670750).

Almost surely, 220328823948 is an apocalyptic number.

It is an amenable number.

20328823948 is a deficient number, since it is larger than the sum of its proper divisors (16519372052).

20328823948 is a wasteful number, since it uses less digits than its factorization.

20328823948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 20328823948 in words is "twenty billion, three hundred twenty-eight million, eight hundred twenty-three thousand, nine hundred forty-eight".

Divisors: 1 2 4 53 106 109 139 212 218 278 436 556 5777 6329 7367 11554 12658 14734 15151 23108 25316 29468 30302 60604 335437 670874 689861 803003 879731 1341748 1379722 1606006 1759462 2759444 3212012 3518924 36562633 46625743 73125266 93251486 95890679 146250532 186502972 191781358 383562716 5082205987 10164411974 20328823948