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20210196480 = 21335164471
BaseRepresentation
bin10010110100100111…
…110010000000000000
31221011111001100121120
4102310213302000000
5312342302241410
613141234352240
71313553556425
oct226447620000
957144040546
1020210196480
118631146821
123b0042b680
131ba10c2056
14d9a19dd4c
157d443b570
hex4b49f2000

20210196480 has 112 divisors (see below), whose sum is σ = 64669074624. Its totient is φ = 5389352960.

The previous prime is 20210196463. The next prime is 20210196497. The reversal of 20210196480 is 8469101202.

It is an interprime number because it is at equal distance from previous prime (20210196463) and next prime (20210196497).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40645 + ... + 205115.

It is an arithmetic number, because the mean of its divisors is an integer number (577402452).

Almost surely, 220210196480 is an apocalyptic number.

20210196480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20210196480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32334537312).

20210196480 is an abundant number, since it is smaller than the sum of its proper divisors (44458878144).

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

20210196480 is an equidigital number, since it uses as much as digits as its factorization.

20210196480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164505 (or 164481 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 20210196480 its reverse (8469101202), we get a palindrome (28679297682).

The spelling of 20210196480 in words is "twenty billion, two hundred ten million, one hundred ninety-six thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2048 2560 3072 3840 4096 5120 6144 7680 8192 10240 12288 15360 20480 24576 30720 40960 61440 122880 164471 328942 493413 657884 822355 986826 1315768 1644710 1973652 2467065 2631536 3289420 3947304 4934130 5263072 6578840 7894608 9868260 10526144 13157680 15789216 19736520 21052288 26315360 31578432 39473040 42104576 52630720 63156864 78946080 84209152 105261440 126313728 157892160 168418304 210522880 252627456 315784320 336836608 421045760 505254912 631568640 673673216 842091520 1010509824 1263137280 1347346432 1684183040 2021019648 2526274560 3368366080 4042039296 5052549120 6736732160 10105098240 20210196480