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102012020148 = 223193491282009
BaseRepresentation
bin101111100000001100…
…0111110010110110100
3100202022101121120000110
41133000120332112310
53132410034121043
6114510315343020
710240644602313
oct1370030762664
9322271546013
10102012020148
113a299142675
121792b751a70
139809604ccc
144d1a36827a
1529c0bc3b33
hex17c063e5b4

102012020148 has 48 divisors (see below), whose sum is σ = 251273960000. Its totient is φ = 32121992448.

The previous prime is 102012020147. The next prime is 102012020153. The reversal of 102012020148 is 841020210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012020147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561433 + ... + 720576.

Almost surely, 2102012020148 is an apocalyptic number.

It is an amenable number.

102012020148 is an abundant number, since it is smaller than the sum of its proper divisors (149261939852).

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

102012020148 is a wasteful number, since it uses less digits than its factorization.

102012020148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282384 (or 1282382 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102012020148 its reverse (841020210201), we get a palindrome (943032230349).

The spelling of 102012020148 in words is "one hundred two billion, twelve million, twenty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 349 698 1047 1396 2094 4188 6631 13262 19893 26524 39786 79572 1282009 2564018 3846027 5128036 7692054 15384108 24358171 48716342 73074513 97432684 146149026 292298052 447421141 894842282 1342263423 1789684564 2684526846 5369053692 8501001679 17002003358 25503005037 34004006716 51006010074 102012020148