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3975680000 = 212541553
BaseRepresentation
bin1110110011111000…
…0001000000000000
3101021001221110200102
43230332001000000
531120233230000
61454300341532
7200343502535
oct35476010000
911231843612
103975680000
111760193256
1292b5448a8
134b4887b96
1429a022d8c
1518406e3d5
hexecf81000

3975680000 has 130 divisors (see below), whose sum is σ = 9941203734. Its totient is φ = 1589248000.

The previous prime is 3975679999. The next prime is 3975680011. The reversal of 3975680000 is 865793.

It can be written as a sum of positive squares in 5 ways, for example, as 2466512896 + 1509167104 = 49664^2 + 38848^2 .

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 9 ways as a sum of consecutive naturals, for example, 2559224 + ... + 2560776.

Almost surely, 23975680000 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 3975680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4970601867).

3975680000 is an abundant number, since it is smaller than the sum of its proper divisors (5965523734).

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

3975680000 is an frugal number, since it uses more digits than its factorization.

3975680000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3975680000 is about 63052.9935847617. The cubic root of 3975680000 is about 1584.1773770008.

The spelling of 3975680000 in words is "three billion, nine hundred seventy-five million, six hundred eighty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 512 625 640 800 1000 1024 1250 1280 1553 1600 2000 2048 2500 2560 3106 3200 4000 4096 5000 5120 6212 6400 7765 8000 10000 10240 12424 12800 15530 16000 20000 20480 24848 25600 31060 32000 38825 40000 49696 51200 62120 64000 77650 80000 99392 102400 124240 128000 155300 160000 194125 198784 248480 256000 310600 320000 388250 397568 496960 512000 621200 640000 776500 795136 970625 993920 1242400 1280000 1553000 1590272 1941250 1987840 2484800 2560000 3106000 3180544 3882500 3975680 4969600 6212000 6361088 7765000 7951360 9939200 12424000 15530000 15902720 19878400 24848000 31060000 31805440 39756800 49696000 62120000 79513600 99392000 124240000 159027200 198784000 248480000 397568000 496960000 795136000 993920000 1987840000 3975680000