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39764768 = 2517671091
BaseRepresentation
bin1001011110110…
…0001100100000
32202211021000012
42113230030200
540134433033
63540144052
7661665161
oct227541440
982737005
1039764768
112049a94a
1211398028
138313764
1453d1768
153757248
hex25ec320

39764768 has 48 divisors (see below), whose sum is σ = 84206304. Its totient is φ = 18416640.

The previous prime is 39764737. The next prime is 39764807. The reversal of 39764768 is 86746793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35903 + ... + 36993.

It is an arithmetic number, because the mean of its divisors is an integer number (1754298).

Almost surely, 239764768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39764768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42103152).

39764768 is an abundant number, since it is smaller than the sum of its proper divisors (44441536).

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

39764768 is a wasteful number, since it uses less digits than its factorization.

39764768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1177 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 39764768 is about 6305.9311762816. The cubic root of 39764768 is about 341.3234690888.

The spelling of 39764768 in words is "thirty-nine million, seven hundred sixty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 67 68 134 136 268 272 536 544 1072 1091 1139 2144 2182 2278 4364 4556 8728 9112 17456 18224 18547 34912 36448 37094 73097 74188 146194 148376 292388 296752 584776 593504 1169552 1242649 2339104 2485298 4970596 9941192 19882384 39764768